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diff --git a/chromium/content/browser/accessibility/browser_accessibility_manager_android.cc b/chromium/content/browser/accessibility/browser_accessibility_manager_android.cc
new file mode 100644
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+++ b/chromium/content/browser/accessibility/browser_accessibility_manager_android.cc
@@ -0,0 +1,366 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/browser/accessibility/browser_accessibility_manager_android.h"
+
+#include <cmath>
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/utf_string_conversions.h"
+#include "base/values.h"
+#include "content/browser/accessibility/browser_accessibility_android.h"
+#include "content/common/accessibility_messages.h"
+#include "jni/BrowserAccessibilityManager_jni.h"
+
+using base::android::AttachCurrentThread;
+using base::android::ScopedJavaLocalRef;
+
+namespace {
+
+// These are enums from android.view.accessibility.AccessibilityEvent in Java:
+enum {
+  ANDROID_ACCESSIBILITY_EVENT_TYPE_VIEW_TEXT_CHANGED = 16,
+  ANDROID_ACCESSIBILITY_EVENT_TYPE_VIEW_TEXT_SELECTION_CHANGED = 8192
+};
+
+// Restricts |val| to the range [min, max].
+int Clamp(int val, int min, int max) {
+  return std::min(std::max(val, min), max);
+}
+
+}  // anonymous namespace
+
+namespace content {
+
+namespace aria_strings {
+  const char kAriaLivePolite[] = "polite";
+  const char kAriaLiveAssertive[] = "assertive";
+}
+
+// static
+BrowserAccessibilityManager* BrowserAccessibilityManager::Create(
+    const AccessibilityNodeData& src,
+    BrowserAccessibilityDelegate* delegate,
+    BrowserAccessibilityFactory* factory) {
+  return new BrowserAccessibilityManagerAndroid(ScopedJavaLocalRef<jobject>(),
+                                                src, delegate, factory);
+}
+
+BrowserAccessibilityManagerAndroid::BrowserAccessibilityManagerAndroid(
+    ScopedJavaLocalRef<jobject> content_view_core,
+    const AccessibilityNodeData& src,
+    BrowserAccessibilityDelegate* delegate,
+    BrowserAccessibilityFactory* factory)
+    : BrowserAccessibilityManager(src, delegate, factory) {
+  if (content_view_core.is_null())
+    return;
+
+  JNIEnv* env = AttachCurrentThread();
+  java_ref_ = JavaObjectWeakGlobalRef(
+      env, Java_BrowserAccessibilityManager_create(
+          env, reinterpret_cast<jint>(this), content_view_core.obj()).obj());
+}
+
+BrowserAccessibilityManagerAndroid::~BrowserAccessibilityManagerAndroid() {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
+  if (obj.is_null())
+    return;
+
+  Java_BrowserAccessibilityManager_onNativeObjectDestroyed(env, obj.obj());
+}
+
+// static
+AccessibilityNodeData BrowserAccessibilityManagerAndroid::GetEmptyDocument() {
+  AccessibilityNodeData empty_document;
+  empty_document.id = 0;
+  empty_document.role = AccessibilityNodeData::ROLE_ROOT_WEB_AREA;
+  empty_document.state = 1 << AccessibilityNodeData::STATE_READONLY;
+  return empty_document;
+}
+
+void BrowserAccessibilityManagerAndroid::NotifyAccessibilityEvent(
+    int type,
+    BrowserAccessibility* node) {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
+  if (obj.is_null())
+    return;
+
+  switch (type) {
+    case AccessibilityNotificationLoadComplete:
+      Java_BrowserAccessibilityManager_handlePageLoaded(
+          env, obj.obj(), focus_->renderer_id());
+      break;
+    case AccessibilityNotificationFocusChanged:
+      Java_BrowserAccessibilityManager_handleFocusChanged(
+          env, obj.obj(), node->renderer_id());
+      break;
+    case AccessibilityNotificationCheckStateChanged:
+      Java_BrowserAccessibilityManager_handleCheckStateChanged(
+          env, obj.obj(), node->renderer_id());
+      break;
+    case AccessibilityNotificationScrolledToAnchor:
+      Java_BrowserAccessibilityManager_handleScrolledToAnchor(
+          env, obj.obj(), node->renderer_id());
+      break;
+    case AccessibilityNotificationAlert:
+      // An alert is a special case of live region. Fall through to the
+      // next case to handle it.
+    case AccessibilityNotificationObjectShow: {
+      // This event is fired when an object appears in a live region.
+      // Speak its text.
+      BrowserAccessibilityAndroid* android_node =
+          static_cast<BrowserAccessibilityAndroid*>(node);
+      Java_BrowserAccessibilityManager_announceLiveRegionText(
+          env, obj.obj(),
+          base::android::ConvertUTF16ToJavaString(
+              env, android_node->GetText()).obj());
+      break;
+    }
+    case AccessibilityNotificationSelectedTextChanged:
+      Java_BrowserAccessibilityManager_handleTextSelectionChanged(
+          env, obj.obj(), node->renderer_id());
+      break;
+    case AccessibilityNotificationChildrenChanged:
+    case AccessibilityNotificationTextChanged:
+    case AccessibilityNotificationValueChanged:
+      if (node->IsEditableText()) {
+        Java_BrowserAccessibilityManager_handleEditableTextChanged(
+            env, obj.obj(), node->renderer_id());
+      } else {
+        Java_BrowserAccessibilityManager_handleContentChanged(
+            env, obj.obj(), node->renderer_id());
+      }
+      break;
+    default:
+      // There are some notifications that aren't meaningful on Android.
+      // It's okay to skip them.
+      break;
+  }
+}
+
+jint BrowserAccessibilityManagerAndroid::GetRootId(JNIEnv* env, jobject obj) {
+  return static_cast<jint>(root_->renderer_id());
+}
+
+jint BrowserAccessibilityManagerAndroid::HitTest(
+    JNIEnv* env, jobject obj, jint x, jint y) {
+  BrowserAccessibilityAndroid* result =
+      static_cast<BrowserAccessibilityAndroid*>(
+          root_->BrowserAccessibilityForPoint(gfx::Point(x, y)));
+
+  if (!result)
+    return root_->renderer_id();
+
+  if (result->IsFocusable())
+    return result->renderer_id();
+
+  // Examine the children of |result| to find the nearest accessibility focus
+  // candidate
+  BrowserAccessibility* nearest_node = FuzzyHitTest(x, y, result);
+  if (nearest_node)
+    return nearest_node->renderer_id();
+
+  return root_->renderer_id();
+}
+
+jboolean BrowserAccessibilityManagerAndroid::PopulateAccessibilityNodeInfo(
+    JNIEnv* env, jobject obj, jobject info, jint id) {
+  BrowserAccessibilityAndroid* node = static_cast<BrowserAccessibilityAndroid*>(
+      GetFromRendererID(id));
+  if (!node)
+    return false;
+
+  if (node->parent()) {
+    Java_BrowserAccessibilityManager_setAccessibilityNodeInfoParent(
+        env, obj, info, node->parent()->renderer_id());
+  }
+  if (!node->IsLeaf()) {
+    for (unsigned i = 0; i < node->child_count(); ++i) {
+      Java_BrowserAccessibilityManager_addAccessibilityNodeInfoChild(
+          env, obj, info, node->children()[i]->renderer_id());
+    }
+  }
+  Java_BrowserAccessibilityManager_setAccessibilityNodeInfoBooleanAttributes(
+      env, obj, info,
+      id,
+      node->IsCheckable(),
+      node->IsChecked(),
+      node->IsClickable(),
+      node->IsEnabled(),
+      node->IsFocusable(),
+      node->IsFocused(),
+      node->IsPassword(),
+      node->IsScrollable(),
+      node->IsSelected(),
+      node->IsVisibleToUser());
+  Java_BrowserAccessibilityManager_setAccessibilityNodeInfoStringAttributes(
+      env, obj, info,
+      base::android::ConvertUTF8ToJavaString(env, node->GetClassName()).obj(),
+      base::android::ConvertUTF16ToJavaString(env, node->GetText()).obj());
+
+  gfx::Rect absolute_rect = node->GetLocalBoundsRect();
+  gfx::Rect parent_relative_rect = absolute_rect;
+  if (node->parent()) {
+    gfx::Rect parent_rect = node->parent()->GetLocalBoundsRect();
+    parent_relative_rect.Offset(-parent_rect.OffsetFromOrigin());
+  }
+  bool is_root = node->parent() == NULL;
+  Java_BrowserAccessibilityManager_setAccessibilityNodeInfoLocation(
+      env, obj, info,
+      absolute_rect.x(), absolute_rect.y(),
+      parent_relative_rect.x(), parent_relative_rect.y(),
+      absolute_rect.width(), absolute_rect.height(),
+      is_root);
+
+  return true;
+}
+
+jboolean BrowserAccessibilityManagerAndroid::PopulateAccessibilityEvent(
+    JNIEnv* env, jobject obj, jobject event, jint id, jint event_type) {
+  BrowserAccessibilityAndroid* node = static_cast<BrowserAccessibilityAndroid*>(
+      GetFromRendererID(id));
+  if (!node)
+    return false;
+
+  Java_BrowserAccessibilityManager_setAccessibilityEventBooleanAttributes(
+      env, obj, event,
+      node->IsChecked(),
+      node->IsEnabled(),
+      node->IsPassword(),
+      node->IsScrollable());
+  Java_BrowserAccessibilityManager_setAccessibilityEventClassName(
+      env, obj, event,
+      base::android::ConvertUTF8ToJavaString(env, node->GetClassName()).obj());
+  Java_BrowserAccessibilityManager_setAccessibilityEventListAttributes(
+      env, obj, event,
+      node->GetItemIndex(),
+      node->GetItemCount());
+  Java_BrowserAccessibilityManager_setAccessibilityEventScrollAttributes(
+      env, obj, event,
+      node->GetScrollX(),
+      node->GetScrollY(),
+      node->GetMaxScrollX(),
+      node->GetMaxScrollY());
+
+  switch (event_type) {
+    case ANDROID_ACCESSIBILITY_EVENT_TYPE_VIEW_TEXT_CHANGED:
+      Java_BrowserAccessibilityManager_setAccessibilityEventTextChangedAttrs(
+          env, obj, event,
+          node->GetTextChangeFromIndex(),
+          node->GetTextChangeAddedCount(),
+          node->GetTextChangeRemovedCount(),
+          base::android::ConvertUTF16ToJavaString(
+              env, node->GetTextChangeBeforeText()).obj(),
+          base::android::ConvertUTF16ToJavaString(env, node->GetText()).obj());
+      break;
+    case ANDROID_ACCESSIBILITY_EVENT_TYPE_VIEW_TEXT_SELECTION_CHANGED:
+      Java_BrowserAccessibilityManager_setAccessibilityEventSelectionAttrs(
+          env, obj, event,
+          node->GetSelectionStart(),
+          node->GetSelectionEnd(),
+          node->GetEditableTextLength(),
+          base::android::ConvertUTF16ToJavaString(env, node->GetText()).obj());
+      break;
+    default:
+      break;
+  }
+
+  return true;
+}
+
+void BrowserAccessibilityManagerAndroid::Click(
+    JNIEnv* env, jobject obj, jint id) {
+  BrowserAccessibility* node = GetFromRendererID(id);
+  if (node)
+    DoDefaultAction(*node);
+}
+
+void BrowserAccessibilityManagerAndroid::Focus(
+    JNIEnv* env, jobject obj, jint id) {
+  BrowserAccessibility* node = GetFromRendererID(id);
+  if (node)
+    SetFocus(node, true);
+}
+
+void BrowserAccessibilityManagerAndroid::Blur(JNIEnv* env, jobject obj) {
+  SetFocus(root_, true);
+}
+
+BrowserAccessibility* BrowserAccessibilityManagerAndroid::FuzzyHitTest(
+    int x, int y, BrowserAccessibility* start_node) {
+  BrowserAccessibility* nearest_node = NULL;
+  int min_distance = INT_MAX;
+  FuzzyHitTestImpl(x, y, start_node, &nearest_node, &min_distance);
+  return nearest_node;
+}
+
+// static
+void BrowserAccessibilityManagerAndroid::FuzzyHitTestImpl(
+    int x, int y, BrowserAccessibility* start_node,
+    BrowserAccessibility** nearest_candidate, int* nearest_distance) {
+  BrowserAccessibilityAndroid* node =
+      static_cast<BrowserAccessibilityAndroid*>(start_node);
+  int distance = CalculateDistanceSquared(x, y, node);
+
+  if (node->IsFocusable()) {
+    if (distance < *nearest_distance) {
+      *nearest_candidate = node;
+      *nearest_distance = distance;
+    }
+    // Don't examine any more children of focusable node
+    // TODO(aboxhall): what about focusable children?
+    return;
+  }
+
+  if (!node->GetText().empty()) {
+    if (distance < *nearest_distance) {
+      *nearest_candidate = node;
+      *nearest_distance = distance;
+    }
+    return;
+  }
+
+  if (!node->IsLeaf()) {
+    for (uint32 i = 0; i < node->child_count(); i++) {
+      BrowserAccessibility* child = node->GetChild(i);
+      FuzzyHitTestImpl(x, y, child, nearest_candidate, nearest_distance);
+    }
+  }
+}
+
+// static
+int BrowserAccessibilityManagerAndroid::CalculateDistanceSquared(
+    int x, int y, BrowserAccessibility* node) {
+  gfx::Rect node_bounds = node->GetLocalBoundsRect();
+  int nearest_x = Clamp(x, node_bounds.x(), node_bounds.right());
+  int nearest_y = Clamp(y, node_bounds.y(), node_bounds.bottom());
+  int dx = std::abs(x - nearest_x);
+  int dy = std::abs(y - nearest_y);
+  return dx * dx + dy * dy;
+}
+
+void BrowserAccessibilityManagerAndroid::NotifyRootChanged() {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
+  if (obj.is_null())
+    return;
+
+  Java_BrowserAccessibilityManager_handleNavigate(env, obj.obj());
+}
+
+bool
+BrowserAccessibilityManagerAndroid::UseRootScrollOffsetsWhenComputingBounds() {
+  // The Java layer handles the root scroll offset.
+  return false;
+}
+
+bool RegisterBrowserAccessibilityManager(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+}  // namespace content