Remove IsSynchronous API from NavigationHandle.

content/public/browser/navigation_handle.h

 // Copyright 2015 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_PUBLIC_BROWSER_NAVIGATION_HANDLE_H_
 #define CONTENT_PUBLIC_BROWSER_NAVIGATION_HANDLE_H_
 
 #include <memory>
 
 #include "content/common/content_export.h"
@@ skipping 52 matching lines @@
   virtual bool IsParentMainFrame() = 0;
 
   // Whether the navigation was initated by the renderer process. Examples of
   // renderer-initiated navigations include:
   //  * <a> link click
   //  * changing window.location.href
   //  * redirect via the <meta http-equiv="refresh"> tag
   //  * using window.history.pushState
   virtual bool IsRendererInitiated() = 0;
 
-  // Whether the navigation is synchronous or not. Examples of synchronous
-  // navigations are:
-  // * reference fragment navigations
-  // * pushState/popState
-  virtual bool IsSynchronousNavigation() = 0;
-
   // Whether the navigation is for an iframe with srcdoc attribute.
   virtual bool IsSrcdoc() = 0;
 
   // Returns the FrameTreeNode ID for the frame in which the navigation is
   // performed. This ID is browser-global and uniquely identifies a frame that
   // hosts content. The identifier is fixed at the creation of the frame and
   // stays constant for the lifetime of the frame.
   virtual int GetFrameTreeNodeId() = 0;
 
   // Returns the FrameTreeNode ID for the parent frame. If this navigation is
@@ skipping 50 matching lines @@
 
   // Returns the RenderFrameHost this navigation is taking place in. This can
   // only be accessed after a response has been delivered for processing.
   //
   // If PlzNavigate is active, the RenderFrameHost returned will be the final
   // host for the navigation. If PlzNavigate is inactive, the navigation may
   // transfer to a new host up until the point that DidFinishNavigation is
   // called.
   virtual RenderFrameHost* GetRenderFrameHost() = 0;
 
-  // Whether the navigation happened in the same page. This is only known
-  // after the navigation has committed. It is an error to call this method
-  // before the navigation has committed.
+  // Whether the navigation happened in the same page. Examples of same page
+  // navigations are:
+  // * reference fragment navigations
+  // * pushState/replaceState
   virtual bool IsSamePage() = 0;
 
   // Whether the navigation has encountered a server redirect or not.
   virtual bool WasServerRedirect() = 0;
 
   // Whether the navigation has committed. This returns true for either
   // successful commits or error pages that replace the previous page
   // (distinguished by |IsErrorPage|), and false for errors that leave the user
   // on the previous page.
   virtual bool HasCommitted() = 0;
@@ skipping 65 matching lines @@
 
   // The NavigationData that the embedder returned from
   // ResourceDispatcherHostDelegate::GetNavigationData during commit. This will
   // be a clone of the NavigationData.
   virtual NavigationData* GetNavigationData() = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_NAVIGATION_HANDLE_H_