Move DidStartLoading, DidStopLoading, DidChangeLoadProgress to RFHI.

content/browser/frame_host/render_frame_host_delegate.h

Index: content/browser/frame_host/render_frame_host_delegate.h
diff --git a/content/browser/frame_host/render_frame_host_delegate.h b/content/browser/frame_host/render_frame_host_delegate.h
index f0e9fbd51d546d0cd7e394a639ad6a0a77cd1722..708e1c92d12683ebfe037420e93f562fc11a21d5 100644
--- a/content/browser/frame_host/render_frame_host_delegate.h
+++ b/content/browser/frame_host/render_frame_host_delegate.h
@@ -58,17 +58,6 @@ class CONTENT_EXPORT RenderFrameHostDelegate {
   // Informs the delegate whenever a RenderFrameHost is deleted.
   virtual void RenderFrameDeleted(RenderFrameHost* render_frame_host) {}
 
-  // The specified RenderFrame began loading a new page. This corresponds to
-  // Blink's notion of the throbber starting.
-  // |to_different_document| will be true unless the load is a fragment
-  // navigation, or triggered by history.pushState/replaceState.
-  virtual void DidStartLoading(RenderFrameHost* render_frame_host,
-                               bool to_different_document) {}
-
-  // The specified RenderFrame stopped loading a page. This corresponds to
-  // Blink's notion of the throbber stopping.
-  virtual void DidStopLoading() {}
-
   // The RenderFrameHost has been swapped out.
   virtual void SwappedOut(RenderFrameHost* render_frame_host) {}