[Extensions] Use document url (not top url) for tab-specific permissions

extensions/browser/extension_web_contents_observer.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_BROWSER_EXTENSION_WEB_CONTENTS_OBSERVER_H_
 #define EXTENSIONS_BROWSER_EXTENSION_WEB_CONTENTS_OBSERVER_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 51 matching lines @@
   void NotifyRenderViewType(content::RenderViewHost* render_view_host);
 
   // Returns the extension or app ID associated with a render view host. Returns
   // the empty string if the render view host is not for a valid extension.
   static std::string GetExtensionId(content::RenderViewHost* render_view_host);
 
  private:
   // The BrowserContext associated with the WebContents being observed.
   content::BrowserContext* browser_context_;
 
+  std::string extension_id_;

[not at google - send to devlin, 2015/06/03 20:15:44]

Seem unnecessary given ProcessManager, plus you haven't used it anywhere.

[Devlin, 2015/06/03 20:28:47]

Totally accidental. Removed.

+
   DISALLOW_COPY_AND_ASSIGN(ExtensionWebContentsObserver);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_EXTENSION_WEB_CONTENTS_OBSERVER_H_