[TimeZoneMonitor] Decouple renderer side impl from content to blink.

third_party/WebKit/public/platform/Platform.h

Index: third_party/WebKit/public/platform/Platform.h
diff --git a/third_party/WebKit/public/platform/Platform.h b/third_party/WebKit/public/platform/Platform.h
index 708d13a5988ae19bc6b5876588d6952df00122d6..ea50669f6658167c65690b8431a7c068e0dd2627 100644
--- a/third_party/WebKit/public/platform/Platform.h
+++ b/third_party/WebKit/public/platform/Platform.h
@@ -141,6 +141,9 @@ class BLINK_PLATFORM_EXPORT Platform {
   static void initialize(Platform*);
   static void shutdown();
   static Platform* current();
+  // Used to get whether message loop is ready for current thread, to help
+  // blink::initialize() determining whether can initialize mojo stuff or not.

[haraken, 2016/10/27 16:13:15]

Add a TODO to remove this public API by ensuring a message loop before calling
blink::initialize().

[leonhsl(Using Gerrit), 2016/10/28 05:59:06]

Done.

+  static bool isMessageLoopReady();
 
   // Used to switch the current platform only for testing.
   static void setCurrentPlatformForTesting(Platform*);