Allow content script insertion on about:-URLs.

chrome/renderer/extensions/user_script_slave.h

 // Copyright (c) 2012 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 CHROME_RENDERER_EXTENSIONS_USER_SCRIPT_SLAVE_H_
 #define CHROME_RENDERER_EXTENSIONS_USER_SCRIPT_SLAVE_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 18 matching lines @@
 class Extension;
 class ExtensionSet;
 
 // Manages installed UserScripts for a render process.
 class UserScriptSlave {
  public:
   // 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);
+
+

[not at google - send to devlin, 2014/05/01 20:32:19]

delete 1 of these blank lines 

[robwu, 2014/05/01 21:30:38]

Done.

   explicit UserScriptSlave(const ExtensionSet* extensions);
   ~UserScriptSlave();
 
   // Returns the unique set of extension IDs this UserScriptSlave knows about.
   void GetActiveExtensions(std::set<std::string>* extension_ids);
 
   // Update the parsed scripts from shared memory.
   bool UpdateScripts(base::SharedMemoryHandle shared_memory);
 
   // Inject the appropriate scripts into a frame based on its URL.
@@ skipping 30 matching lines @@
 
   typedef std::map<std::string, int> IsolatedWorldMap;
   IsolatedWorldMap isolated_world_ids_;
 
   DISALLOW_COPY_AND_ASSIGN(UserScriptSlave);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_RENDERER_EXTENSIONS_USER_SCRIPT_SLAVE_H_