[ScreenOrientation] Merge mojo interface ScreenOrientationListener into ScreenOrientation

content/renderer/renderer_blink_platform_impl.cc

Index: content/renderer/renderer_blink_platform_impl.cc
diff --git a/content/renderer/renderer_blink_platform_impl.cc b/content/renderer/renderer_blink_platform_impl.cc
index 5099df29a1ecc049a6a3d4a24ed0ef48bb0a9a6e..c6ebb138860a50ca84789f989342bfdb23a47905 100644
--- a/content/renderer/renderer_blink_platform_impl.cc
+++ b/content/renderer/renderer_blink_platform_impl.cc
@@ -65,7 +65,6 @@
 #include "content/renderer/mojo/blink_interface_provider_impl.h"
 #include "content/renderer/render_thread_impl.h"
 #include "content/renderer/renderer_clipboard_delegate.h"
-#include "content/renderer/screen_orientation/screen_orientation_observer.h"
 #include "content/renderer/webclipboard_impl.h"
 #include "content/renderer/webgraphicscontext3d_provider_impl.h"
 #include "content/renderer/webpublicsuffixlist_impl.h"
@@ -1170,8 +1169,6 @@ RendererBlinkPlatformImpl::CreatePlatformEventObserverFromType(
       return base::MakeUnique<DeviceLightEventPump>(thread);
     case blink::WebPlatformEventTypeGamepad:
       return base::MakeUnique<GamepadSharedMemoryReader>(thread);
-    case blink::WebPlatformEventTypeScreenOrientation:
-      return base::MakeUnique<ScreenOrientationObserver>();
     default:
       // A default statement is required to prevent compilation errors when
       // Blink adds a new type.