Mojo-ify implementation of screen orientation locking/unlocking.

content/browser/web_contents/web_contents_impl.h

Index: content/browser/web_contents/web_contents_impl.h
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index e57408e5957da0e7f89969da009f5ba8c26c6600..1e6bafe51af6386e326432def2337b16dd1ad1d6 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -36,6 +36,7 @@
 #include "content/public/browser/color_chooser.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
+#include "content/public/browser/screen_orientation_provider.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/common/page_importance_signals.h"
@@ -73,7 +74,6 @@ class RenderViewHostDelegateView;
 class RenderWidgetHostImpl;
 class RenderWidgetHostInputEventRouter;
 class SavePackage;
-class ScreenOrientationDispatcherHost;
 class SiteInstance;
 class TestWebContents;
 class TextInputManager;
@@ -209,10 +209,6 @@ class CONTENT_EXPORT WebContentsImpl
 
   WebContentsView* GetView() const;
 
-  ScreenOrientationDispatcherHost* screen_orientation_dispatcher_host() {
-    return screen_orientation_dispatcher_host_.get();
-  }
-
   bool should_normally_be_visible() { return should_normally_be_visible_; }
 
   // Indicate if the window has been occluded, and pass this to the views, only
@@ -491,6 +487,7 @@ class CONTENT_EXPORT WebContentsImpl
       int browser_plugin_instance_id) override;
   device::GeolocationServiceContext* GetGeolocationServiceContext() override;
   device::WakeLockServiceContext* GetWakeLockServiceContext() override;
+  ScreenOrientationProvider* GetScreenOrientationProvider() override;
   void EnterFullscreenMode(const GURL& origin) override;
   void ExitFullscreenMode(bool will_cause_resize) override;
   bool ShouldRouteMessageEvent(
@@ -1408,8 +1405,7 @@ class CONTENT_EXPORT WebContentsImpl
 
   std::unique_ptr<device::WakeLockServiceContext> wake_lock_service_context_;
 
-  std::unique_ptr<ScreenOrientationDispatcherHost>
-      screen_orientation_dispatcher_host_;
+  std::unique_ptr<ScreenOrientationProvider> screen_orientation_provider_;
 
   std::unique_ptr<ManifestManagerHost> manifest_manager_host_;