Allow content script insertion on about:-URLs.

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 <string>
 
 #include "base/basictypes.h"
@@ skipping 87 matching lines @@
 
   // Returns whether the API |api| or any part of the API could be
   // available in this context without taking into account the context's
   // extension.
   bool IsAnyFeatureAvailableToContext(const extensions::Feature& api);
 
   // Utility to get the URL we will match against for a frame. If the frame has
   // committed, this is the commited URL. Otherwise it is the provisional URL.
   static GURL GetDataSourceURLForFrame(const blink::WebFrame* 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::WebFrame* frame,
+                                      const GURL& document_url,
+                                      bool match_about_blank);
+
   // RequestSender::Source implementation.
   virtual ScriptContext* GetContext() OVERRIDE;
   virtual void OnResponseReceived(const std::string& name,
                                   int request_id,
                                   bool success,
                                   const base::ListValue& response,
                                   const std::string& error) OVERRIDE;
 
  protected:
   // The v8 context the bindings are accessible to.
@@ skipping 18 matching lines @@
   SafeBuiltins safe_builtins_;
 
   v8::Isolate* isolate_;
 
   DISALLOW_COPY_AND_ASSIGN(ScriptContext);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_SCRIPT_CONTEXT_H_