Move GetDocument method from WebFrame to WebLocalFrame.

extensions/renderer/script_context.h

 // Copyright 2014 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 EXTENSIONS_RENDERER_SCRIPT_CONTEXT_H_
 #define EXTENSIONS_RENDERER_SCRIPT_CONTEXT_H_
 
 #include <memory>
 #include <string>
 #include <utility>
@@ skipping 159 matching lines @@
   // Similar to GetDataSourceURLForFrame, but only returns the data source URL
   // if the frame's document url is empty and the frame has a security origin
   // that allows access to the data source url.
   // TODO(asargent/devlin) - there may be places that should switch to using
   // this instead of GetDataSourceURLForFrame.
   static GURL GetAccessCheckedFrameURL(const blink::WebLocalFrame* frame);
 
   // Returns the first non-about:-URL in the document hierarchy above and
   // including |frame|. The document hierarchy is only traversed if
   // |document_url| is an about:-URL and if |match_about_blank| is true.
-  static GURL GetEffectiveDocumentURL(const blink::WebLocalFrame* frame,
+  static GURL GetEffectiveDocumentURL(blink::WebLocalFrame* frame,
                                       const GURL& document_url,
                                       bool match_about_blank);
 
   // RequestSender::Source implementation.
   ScriptContext* GetContext() override;
   void OnResponseReceived(const std::string& name,
                           int request_id,
                           bool success,
                           const base::ListValue& response,
                           const std::string& error) override;
@@ skipping 81 matching lines @@
   std::unique_ptr<Runner> runner_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(ScriptContext);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_SCRIPT_CONTEXT_H_