Drop url_constants dependency in content/.

content/browser/content_browser_client.h

 // Copyright (c) 2011 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_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #pragma once
 
 #include <string>
 
@@ skipping 39 matching lines @@
   // embedder's IPC filters have priority.
   virtual void WorkerProcessHostCreated(WorkerProcessHost* host);
 
   // Gets the WebUIFactory which will be responsible for generating WebUIs.
   virtual WebUIFactory* GetWebUIFactory();
 
   // Get the effective URL for the given actual URL, to allow an embedder to
   // group different url schemes in the same SiteInstance.
   virtual GURL GetEffectiveURL(Profile* profile, const GURL& url);
 
+  // Returns whether a specified URL is to be considered the same as any
+  // SiteInstance.
+  virtual bool IsURLSameAsAnySiteInstance(const GURL& url);
+
   // See RenderViewHostDelegate's comment.
   virtual GURL GetAlternateErrorPageURL(const TabContents* tab);
 
   // See CharacterEncoding's comment.
   virtual std::string GetCanonicalEncodingNameByAliasName(
       const std::string& alias_name);
 
   // Allows the embedder to pass extra command line flags.
   // switches::kProcessType will already be set at this point.
   virtual void AppendExtraCommandLineSwitches(CommandLine* command_line,
@@ skipping 28 matching lines @@
 
 #if defined(OS_LINUX)
   // Can return an optional fd for crash handling, otherwise returns -1.
   virtual int GetCrashSignalFD(const std::string& process_type);
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_CONTENT_BROWSER_CLIENT_H_