Create Mojo service for locking/unlocking screen orientation.

content/browser/android/content_view_core_impl.cc

Index: content/browser/android/content_view_core_impl.cc
diff --git a/content/browser/android/content_view_core_impl.cc b/content/browser/android/content_view_core_impl.cc
index 3afa104ab1e5826fadf59a8bdae5ec1f2bd3dfc1..437051a17806ee95bd4c209a3f28e8b4d307e482 100644
--- a/content/browser/android/content_view_core_impl.cc
+++ b/content/browser/android/content_view_core_impl.cc
@@ -32,6 +32,7 @@
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
+#include "content/browser/screen_orientation/screen_orientation_context.h"
 #include "content/browser/transition_request_manager.h"
 #include "content/browser/web_contents/web_contents_view_android.h"
 #include "content/common/frame_messages.h"
@@ -42,7 +43,6 @@
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/favicon_status.h"
 #include "content/public/browser/render_frame_host.h"
-#include "content/public/browser/screen_orientation_dispatcher_host.h"
 #include "content/public/browser/ssl_host_state_delegate.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/content_client.h"
@@ -1254,8 +1254,9 @@ void ContentViewCoreImpl::SendOrientationChangeEventInternal() {
   if (rwhv)
     rwhv->UpdateScreenInfo(GetViewAndroid());
 
-  static_cast<WebContentsImpl*>(web_contents())->
-      screen_orientation_dispatcher_host()->OnOrientationChange();
+  static_cast<WebContentsImpl*>(web_contents())
+      ->screen_orientation_context()

[qsr, 2014/09/22 13:01:48]

The -> should be on the previous line.

+      ->OnScreenOrientationChange();
 }
 
 void ContentViewCoreImpl::ExtractSmartClipData(JNIEnv* env,