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1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef CHROME_BROWSER_EXTENSIONS_CHROME_EXTENSION_WEB_CONTENTS_OBSERVER_H_
6 #define CHROME_BROWSER_EXTENSIONS_CHROME_EXTENSION_WEB_CONTENTS_OBSERVER_H_
7 
8 #include "base/compiler_specific.h"
9 #include "base/strings/string16.h"
10 #include "content/public/browser/web_contents_user_data.h"
11 #include "extensions/browser/extension_web_contents_observer.h"
12 #include "extensions/common/stack_frame.h"
13 
14 namespace content {
15 class RenderFrameHost;
16 }
17 
18 namespace extensions {
19 
20 // An ExtensionWebContentsObserver that adds support for the extension error
21 // console, reloading crashed extensions and routing extension messages between
22 // renderers.
23 class ChromeExtensionWebContentsObserver
24     : public ExtensionWebContentsObserver,
25       public content::WebContentsUserData<ChromeExtensionWebContentsObserver> {
26  private:
27   friend class content::WebContentsUserData<ChromeExtensionWebContentsObserver>;
28 
29   explicit ChromeExtensionWebContentsObserver(
30       content::WebContents* web_contents);
31   virtual ~ChromeExtensionWebContentsObserver();
32 
33   // content::WebContentsObserver overrides.
34   virtual void RenderViewCreated(content::RenderViewHost* render_view_host)
35       OVERRIDE;
36   virtual bool OnMessageReceived(
37       const IPC::Message& message,
38       content::RenderFrameHost* render_frame_host) OVERRIDE;
39 
40   // Adds a message to the extensions ErrorConsole.
41   void OnDetailedConsoleMessageAdded(const base::string16& message,
42                                      const base::string16& source,
43                                      const StackTrace& stack_trace,
44                                      int32 severity_level);
45 
46   // Reloads an extension if it is on the terminated list.
47   void ReloadIfTerminated(content::RenderViewHost* render_view_host);
48 
49   DISALLOW_COPY_AND_ASSIGN(ChromeExtensionWebContentsObserver);
50 };
51 
52 }  // namespace extensions
53 
54 #endif  // CHROME_BROWSER_EXTENSIONS_CHROME_EXTENSION_WEB_CONTENTS_OBSERVER_H_
55