Don't spin the loading indicator for in-page navigations.

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 6edb3007c86447d8923b5ab1e3e0860322a16505..96e756b83fc4c4840074093bfe4265410fb27d7c 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -202,6 +202,7 @@ class CONTENT_EXPORT WebContentsImpl
   virtual SiteInstance* GetSiteInstance() const OVERRIDE;
   virtual SiteInstance* GetPendingSiteInstance() const OVERRIDE;
   virtual bool IsLoading() const OVERRIDE;
+  virtual bool IsLoadingToDifferentDocument() const OVERRIDE;
   virtual bool IsWaitingForResponse() const OVERRIDE;
   virtual const net::LoadStateWithParam& GetLoadState() const OVERRIDE;
   virtual const base::string16& GetLoadStateHost() const OVERRIDE;
@@ -940,6 +941,10 @@ class CONTENT_EXPORT WebContentsImpl
   // Indicates whether we're currently loading a resource.
   bool is_loading_;
 
+  // Indicates whether the current load is to a different document. Only valid
+  // if is_loading_ is true.
+  bool is_load_to_different_document_;
+
   // Indicates if the tab is considered crashed.
   base::TerminationStatus crashed_status_;
   int crashed_error_code_;