Allow out-of-process iframes to update the mouse cursor

content/browser/frame_host/cross_process_frame_connector.h

Index: content/browser/frame_host/cross_process_frame_connector.h
diff --git a/content/browser/frame_host/cross_process_frame_connector.h b/content/browser/frame_host/cross_process_frame_connector.h
index 48547213e133ad0bcff5e4a64dbf670d559d3adb..04d4eb8e83e3ed1ca10a0e931839a9120096860d 100644
--- a/content/browser/frame_host/cross_process_frame_connector.h
+++ b/content/browser/frame_host/cross_process_frame_connector.h
@@ -27,8 +27,10 @@ struct FrameHostMsg_CompositorFrameSwappedACK_Params;
 struct FrameHostMsg_ReclaimCompositorResources_Params;
 
 namespace content {
+class WebCursor;
 class RenderFrameProxyHost;
 class RenderWidgetHostImpl;
+class RenderWidgetHostViewBase;
 class RenderWidgetHostViewChildFrame;
 
 // CrossProcessFrameConnector provides the platform view abstraction for
@@ -96,6 +98,7 @@ class CONTENT_EXPORT CrossProcessFrameConnector {
   gfx::Rect ChildFrameRect();
   float device_scale_factor() const { return device_scale_factor_; }
   void GetScreenInfo(blink::WebScreenInfo* results);
+  void UpdateCursor(const WebCursor& cursor);
 
  private:
   // Handlers for messages received from the parent frame.
@@ -113,6 +116,9 @@ class CONTENT_EXPORT CrossProcessFrameConnector {
   void SetDeviceScaleFactor(float scale_factor);
   void SetSize(gfx::Rect frame_rect);
 
+  // Retrieve the view for the top-level frame under the same WebContents.
+  RenderWidgetHostViewBase* GetRootRenderWidgetHostView();
+
   // The RenderFrameProxyHost that routes messages to the parent frame's
   // renderer process.
   RenderFrameProxyHost* frame_proxy_in_parent_renderer_;