2 files changed, 15 insertions, 13 deletions
diff --git a/chromium/extensions/browser/api/cast_channel/cast_channel_api.cc b/chromium/extensions/browser/api/cast_channel/cast_channel_api.cc
index dc1f5bb8c59..5bd2b5daa9f 100644
--- a/chromium/extensions/browser/api/cast_channel/cast_channel_api.cc
+++ b/chromium/extensions/browser/api/cast_channel/cast_channel_api.cc
@@ -17,7 +17,6 @@
 #include "base/json/json_writer.h"
 #include "base/lazy_instance.h"
 #include "base/strings/string_number_conversions.h"
-#include "base/task/post_task.h"
 #include "base/values.h"
 #include "components/cast_channel/cast_channel_enum.h"
 #include "components/cast_channel/cast_message_util.h"
@@ -515,8 +514,8 @@ void CastChannelAPI::CastMessageHandler::OnError(
       OnError::Create(channel_info, error_info);
   std::unique_ptr<Event> event(new Event(
       events::CAST_CHANNEL_ON_ERROR, OnError::kEventName, std::move(results)));
-  base::PostTask(FROM_HERE, {BrowserThread::UI},
-                 base::BindOnce(ui_dispatch_cb_, std::move(event)));
+  content::GetUIThreadTaskRunner({})->PostTask(
+      FROM_HERE, base::BindOnce(ui_dispatch_cb_, std::move(event)));
 }
 
 void CastChannelAPI::CastMessageHandler::OnMessage(
@@ -536,8 +535,8 @@ void CastChannelAPI::CastMessageHandler::OnMessage(
   std::unique_ptr<Event> event(new Event(events::CAST_CHANNEL_ON_MESSAGE,
                                          OnMessage::kEventName,
                                          std::move(results)));
-  base::PostTask(FROM_HERE, {BrowserThread::UI},
-                 base::BindOnce(ui_dispatch_cb_, std::move(event)));
+  content::GetUIThreadTaskRunner({})->PostTask(
+      FROM_HERE, base::BindOnce(ui_dispatch_cb_, std::move(event)));
 }
 
 }  // namespace extensions
diff --git a/chromium/extensions/browser/api/cast_channel/cast_channel_apitest.cc b/chromium/extensions/browser/api/cast_channel/cast_channel_apitest.cc
index bcf1c80d54f..8b4acb1cca4 100644
--- a/chromium/extensions/browser/api/cast_channel/cast_channel_apitest.cc
+++ b/chromium/extensions/browser/api/cast_channel/cast_channel_apitest.cc
@@ -8,7 +8,6 @@
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/memory/ptr_util.h"
-#include "base/task/post_task.h"
 #include "base/test/scoped_feature_list.h"
 #include "base/timer/mock_timer.h"
 #include "build/build_config.h"
@@ -100,7 +99,11 @@ class CastChannelAPITest : public extensions::ExtensionApiTest {
     // Stub out DualMediaSinkService so it does not interfere with the test.
     media_router::DualMediaSinkService::SetInstanceForTest(
         new media_router::NoopDualMediaSinkService());
-    feature_list_.InitAndDisableFeature(media_router::kDialMediaRouteProvider);
+    // The Media Route Providers must be disabled because they rely on the
+    // presence of a valid DualMediaSinkService.
+    feature_list_.InitWithFeatures(
+        {}, /* disabled_features */ {media_router::kDialMediaRouteProvider,
+                                     media_router::kCastMediaRouteProvider});
     extensions::ExtensionApiTest::SetUp();
   }
 
@@ -204,8 +207,8 @@ class CastChannelAPITest : public extensions::ExtensionApiTest {
 
  protected:
   void CallOnMessage(const std::string& message) {
-    base::PostTask(FROM_HERE, {content::BrowserThread::IO},
-                   base::BindOnce(&CastChannelAPITest::DoCallOnMessage,
+    content::GetIOThreadTaskRunner({})->PostTask(
+        FROM_HERE, base::BindOnce(&CastChannelAPITest::DoCallOnMessage,
                                   base::Unretained(this), GetApi(),
                                   mock_cast_socket_, message));
   }
@@ -220,8 +223,8 @@ class CastChannelAPITest : public extensions::ExtensionApiTest {
 
   // Fires a timer on the IO thread.
   void FireTimeout() {
-    base::PostTask(FROM_HERE, {content::BrowserThread::IO},
-                   base::BindOnce(&CastChannelAPITest::DoFireTimeout,
+    content::GetIOThreadTaskRunner({})->PostTask(
+        FROM_HERE, base::BindOnce(&CastChannelAPITest::DoFireTimeout,
                                   base::Unretained(this), mock_cast_socket_));
   }
 
@@ -255,8 +258,8 @@ class CastChannelAPITest : public extensions::ExtensionApiTest {
 };
 
 ACTION_P2(InvokeObserverOnError, api_test, cast_socket_service) {
-  base::PostTask(FROM_HERE, {content::BrowserThread::IO},
-                 base::BindOnce(&CastChannelAPITest::DoCallOnError,
+  content::GetIOThreadTaskRunner({})->PostTask(
+      FROM_HERE, base::BindOnce(&CastChannelAPITest::DoCallOnError,
                                 base::Unretained(api_test),
                                 base::Unretained(cast_socket_service)));
 }