Remove content/port directory and move the 3 remaining interfaces to content/public.

content/browser/renderer_host/render_widget_host_view_base.h

Index: content/browser/renderer_host/render_widget_host_view_base.h
===================================================================
--- content/browser/renderer_host/render_widget_host_view_base.h	(revision 268318)
+++ content/browser/renderer_host/render_widget_host_view_base.h	(working copy)
@@ -49,7 +49,6 @@
 
 namespace content {
 class BrowserAccessibilityManager;
-class RenderWidgetHostViewFrameSubscriber;
 class SyntheticGesture;
 class SyntheticGestureTarget;
 class WebCursor;
@@ -71,6 +70,9 @@
   virtual bool IsMouseLocked() OVERRIDE;
   virtual gfx::Size GetVisibleViewportSize() const OVERRIDE;
   virtual void SetInsets(const gfx::Insets& insets) OVERRIDE;
+  virtual void BeginFrameSubscription(
+      scoped_ptr<RenderWidgetHostViewFrameSubscriber> subscriber) OVERRIDE;
+  virtual void EndFrameSubscription() OVERRIDE;
 
   // IPC::Listener implementation:
   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
@@ -142,16 +144,6 @@
   // Return true if frame subscription is supported on this platform.
   virtual bool CanSubscribeFrame() const;
 
-  // Begin subscribing for presentation events and captured frames.
-  // |subscriber| is now owned by this object, it will be called only on the
-  // UI thread.
-  virtual void BeginFrameSubscription(
-      scoped_ptr<RenderWidgetHostViewFrameSubscriber> subscriber);
-
-  // End subscribing for frame presentation events. FrameSubscriber will be
-  // deleted after this call.
-  virtual void EndFrameSubscription();
-
   // Create a BrowserAccessibilityManager for this view if it's possible to
   // create one and if one doesn't exist already. Some ports may not create
   // one depending on the current state.