Move DidStartLoading, DidStopLoading, DidChangeLoadProgress to RFHI.

content/browser/frame_host/navigator_delegate.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_DELEGATE_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_DELEGATE_H_
 
 #include "base/strings/string16.h"
 #include "content/public/browser/invalidate_type.h"
 #include "content/public/browser/navigation_controller.h"
 #include "ui/base/page_transition_types.h"
 #include "ui/base/window_open_disposition.h"
 
 class GURL;
 struct FrameHostMsg_DidCommitProvisionalLoad_Params;
 struct FrameHostMsg_DidFailProvisionalLoadWithError_Params;
 
 namespace content {
 
+class FrameTreeNode;
 class RenderFrameHostImpl;
 struct LoadCommittedDetails;
 struct OpenURLParams;
 
 // A delegate API used by Navigator to notify its embedder of navigation
 // related events.
 class CONTENT_EXPORT NavigatorDelegate {
  public:
   // The RenderFrameHost started a provisional load for the frame
   // represented by |render_frame_host|.
@@ skipping 62 matching lines @@
       NavigationController::ReloadType reload_type) {}
 
   // Opens a URL with the given parameters. See PageNavigator::OpenURL, which
   // this forwards to.
   virtual void RequestOpenURL(RenderFrameHostImpl* render_frame_host,
                               const OpenURLParams& params) {}
 
   // Returns whether URLs for aborted browser-initiated navigations should be
   // preserved in the omnibox.  Defaults to false.
   virtual bool ShouldPreserveAbortedURLs();
+
+  // A RenderFrameHost in the specified |frame_tree_node| started loading a new
+  // document. This correponds 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(FrameTreeNode* frame_tree_node,
+                               bool to_different_document) {}
+
+  // A document stopped loading. This corresponds to Blink's notion of the
+  // throbber stopping.
+  virtual void DidStopLoading() {}
+
+  // The load progress was changed.
+  virtual void DidChangeLoadProgress() {}
 };
 
 }  // namspace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_DELEGATE_H_