BASELINE: Update chromium to 44.0.2403.47

Change-Id: Ie056fedba95cf5e5c76b30c4b2c80fca4764aa2f
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>

1 files changed, 12 insertions, 6 deletions

diff --git a/chromium/base/compiler_specific.h b/chromium/base/compiler_specific.h
index 47ca9778b67..63297dcaf00 100644
--- a/chromium/base/compiler_specific.h
+++ b/chromium/base/compiler_specific.h
@@ -128,13 +128,11 @@
 #define ALIGNAS(byte_alignment) __attribute__((aligned(byte_alignment)))
 #endif
 
-// Return the byte alignment of the given type (available at compile time).  Use
-// sizeof(type) prior to checking __alignof to workaround Visual C++ bug:
-// http://goo.gl/isH0C
+// Return the byte alignment of the given type (available at compile time).
 // Use like:
 //   ALIGNOF(int32)  // this would be 4
 #if defined(COMPILER_MSVC)
-#define ALIGNOF(type) (sizeof(type) - sizeof(type) + __alignof(type))
+#define ALIGNOF(type) __alignof(type)
 #elif defined(COMPILER_GCC)
 #define ALIGNOF(type) __alignof__(type)
 #endif
@@ -175,9 +173,17 @@
 // Mark a memory region fully initialized.
 // Use this to annotate code that deliberately reads uninitialized data, for
 // example a GC scavenging root set pointers from the stack.
-#define MSAN_UNPOISON(p, s)  __msan_unpoison(p, s)
+#define MSAN_UNPOISON(p, size)  __msan_unpoison(p, size)
+
+// Check a memory region for initializedness, as if it was being used here.
+// If any bits are uninitialized, crash with an MSan report.
+// Use this to sanitize data which MSan won't be able to track, e.g. before
+// passing data to another process via shared memory.
+#define MSAN_CHECK_MEM_IS_INITIALIZED(p, size) \
+    __msan_check_mem_is_initialized(p, size)
 #else  // MEMORY_SANITIZER
-#define MSAN_UNPOISON(p, s)
+#define MSAN_UNPOISON(p, size)
+#define MSAN_CHECK_MEM_IS_INITIALIZED(p, size)
 #endif  // MEMORY_SANITIZER
 
 // Macro useful for writing cross-platform function pointers.