Relanding: Add js api for hosted/packaged apps to request notification authorization

chrome/browser/extensions/extension_tab_helper.h

 // Copyright (c) 2011 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_BROWSER_EXTENSIONS_EXTENSION_TAB_HELPER_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_HELPER_H_
 #pragma once
 
-#include "content/browser/tab_contents/tab_contents_observer.h"
+#include "base/memory/weak_ptr.h"
+#include "chrome/browser/extensions/app_notify_channel_setup.h"
 #include "chrome/browser/extensions/extension_function_dispatcher.h"
 #include "chrome/browser/extensions/image_loading_tracker.h"
 #include "chrome/browser/extensions/webstore_inline_installer.h"
 #include "chrome/common/web_apps.h"
+#include "content/browser/tab_contents/tab_contents_observer.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
 class Extension;
 class TabContentsWrapper;
 struct WebApplicationInfo;
 
 namespace content {
 struct LoadCommittedDetails;
 }
 
 // Per-tab extension helper. Also handles non-extension apps.
-class ExtensionTabHelper : public TabContentsObserver,
-                           public ExtensionFunctionDispatcher::Delegate,
-                           public ImageLoadingTracker::Observer,
-                           public WebstoreInlineInstaller::Delegate {
+class ExtensionTabHelper
+    : public TabContentsObserver,
+      public ExtensionFunctionDispatcher::Delegate,
+      public ImageLoadingTracker::Observer,
+      public WebstoreInlineInstaller::Delegate,
+      public AppNotifyChannelSetup::Delegate,
+      public base::SupportsWeakPtr<ExtensionTabHelper> {
  public:
   explicit ExtensionTabHelper(TabContentsWrapper* wrapper);
   virtual ~ExtensionTabHelper();
 
   // Copies the internal state from another ExtensionTabHelper.
   void CopyStateFrom(const ExtensionTabHelper& source);
 
   // Call this after updating a page action to notify clients about the changes.
   void PageActionStateChanged();
 
@@ skipping 54 matching lines @@
   virtual Browser* GetBrowser() OVERRIDE;
   virtual gfx::NativeView GetNativeViewOfHost() OVERRIDE;
   virtual TabContents* GetAssociatedTabContents() const OVERRIDE;
 
   // Message handlers.
   void OnDidGetApplicationInfo(int32 page_id, const WebApplicationInfo& info);
   void OnInstallApplication(const WebApplicationInfo& info);
   void OnInlineWebstoreInstall(int install_id,
                                const std::string& webstore_item_id,
                                const GURL& requestor_url);
+  void OnGetAppNotifyChannel(int request_id,
+                             const GURL& requestor_url,
+                             const std::string& client_id);
   void OnRequest(const ExtensionHostMsg_Request_Params& params);
 
   // App extensions related methods:
 
   // Resets app_icon_ and if |extension| is non-null creates a new
   // ImageLoadingTracker to load the extension's image.
   void UpdateExtensionAppIcon(const Extension* extension);
 
   // ImageLoadingTracker::Observer.
   virtual void OnImageLoaded(SkBitmap* image, const ExtensionResource& resource,
                              int index) OVERRIDE;
 
   // WebstoreInlineInstaller::Delegate.
   virtual void OnInlineInstallSuccess(int install_id) OVERRIDE;
   virtual void OnInlineInstallFailure(int install_id,
                                       const std::string& error) OVERRIDE;
 
+  // AppNotifyChannelSetup::Delegate.
+  virtual void AppNotifyChannelSetupComplete(int request_id,
+                                             const std::string& channel_id,
+                                             const std::string& error);
+
   // Data for app extensions ---------------------------------------------------
 
   // If non-null this tab is an app tab and this is the extension the tab was
   // created for.
   const Extension* extension_app_;
 
   // Icon for extension_app_ (if non-null) or a manually-set icon for
   // non-extension apps.
   SkBitmap extension_app_icon_;
 
   // Process any extension messages coming from the tab.
   ExtensionFunctionDispatcher extension_function_dispatcher_;
 
   // Used for loading extension_app_icon_.
   scoped_ptr<ImageLoadingTracker> extension_app_image_loader_;
 
   // Cached web app info data.
   WebApplicationInfo web_app_info_;
 
   TabContentsWrapper* wrapper_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionTabHelper);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_HELPER_H_