Create Mojo service for locking/unlocking screen orientation.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 3b19fa3896b671fcd89d73ebb4dd2ad2a9d67e6b..da676c47e281a5c37803f7245e39c67231987662 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -87,7 +87,6 @@
 #include "content/renderer/render_widget_fullscreen_pepper.h"
 #include "content/renderer/renderer_webapplicationcachehost_impl.h"
 #include "content/renderer/renderer_webcolorchooser_impl.h"
-#include "content/renderer/screen_orientation/screen_orientation_dispatcher.h"
 #include "content/renderer/shared_worker_repository.h"
 #include "content/renderer/v8_value_converter_impl.h"
 #include "content/renderer/websharedworker_proxy.h"
@@ -3185,8 +3184,13 @@ void RenderFrameImpl::initializeChildFrame(const blink::WebRect& frame_rect,
 
 blink::WebScreenOrientationClient*
     RenderFrameImpl::webScreenOrientationClient() {
-  if (!screen_orientation_dispatcher_)
-    screen_orientation_dispatcher_ = new ScreenOrientationDispatcher(this);
+  if (!screen_orientation_dispatcher_) {
+    // Connect to the remote service and give the proxy thus obtained to the
+    // dispatcher.
+    GetServiceRegistry()->ConnectToRemoteService(&screen_orientation_service_);
+    screen_orientation_dispatcher_ =
+        new ScreenOrientationDispatcher(screen_orientation_service_.get());
+  }
   return screen_orientation_dispatcher_;
 }