platform apps: use app name for WebRTC balloons

chrome/browser/media/media_stream_capture_indicator.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_BROWSER_MEDIA_MEDIA_STREAM_CAPTURE_INDICATOR_H_
 #define CHROME_BROWSER_MEDIA_MEDIA_STREAM_CAPTURE_INDICATOR_H_
 
 #include <string>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
+#include "chrome/browser/extensions/image_loading_tracker.h"
 #include "content/public/common/media_stream_request.h"
 #include "ui/base/models/simple_menu_model.h"
 #include "ui/gfx/image/image_skia.h"
 
 class StatusIcon;
 class StatusTray;
 
 // This indicator is owned by MediaInternals and deleted when MediaInternals
 // is deleted.
 class MediaStreamCaptureIndicator
     : public base::RefCountedThreadSafe<MediaStreamCaptureIndicator>,
-      public ui::SimpleMenuModel::Delegate {
+      public ui::SimpleMenuModel::Delegate,
+      public ImageLoadingTracker::Observer {
  public:
   MediaStreamCaptureIndicator();
 
   // Overrides from SimpleMenuModel::Delegate implementation.
   virtual bool IsCommandIdChecked(int command_id) const OVERRIDE;
   virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE;
   virtual bool GetAcceleratorForCommandId(
       int command_id,
       ui::Accelerator* accelerator) OVERRIDE;
   virtual void ExecuteCommand(int command_id) OVERRIDE;
 
   // Called on IO thread when MediaStream opens new capture devices.
   void CaptureDevicesOpened(int render_process_id,
                             int render_view_id,
                             const content::MediaStreamDevices& devices);
 
   // Called on IO thread when MediaStream closes the opened devices.
   void CaptureDevicesClosed(int render_process_id,
                             int render_view_id,
                             const content::MediaStreamDevices& devices);
 
+  // ImageLoadingTracker::Observer implementation.
+  virtual void OnImageLoaded(const gfx::Image& image,
+                             const std::string& extension_id,
+                             int index) OVERRIDE;
+
  private:
   // Struct to store the usage information of the capture devices for each tab.
+  // TODO(estade): this should be called CaptureDeviceContents; not all the
+  // render views it represents are tabs.
   struct CaptureDeviceTab {
     CaptureDeviceTab(int render_process_id,
                      int render_view_id)
         : render_process_id(render_process_id),
           render_view_id(render_view_id),
           audio_ref_count(0),
           video_ref_count(0) {}
 
     int render_process_id;
     int render_view_id;
@@ skipping 39 matching lines @@
                            const content::MediaStreamDevices& devices);
 
   // Removes the tab from the device usage list.
   void RemoveCaptureDeviceTab(int render_process_id,
                               int render_view_id,
                               const content::MediaStreamDevices& devices);
 
   // Triggers a balloon in the corner telling capture devices are being used.
   // This function is called by AddCaptureDeviceTab().
   void ShowBalloon(int render_process_id, int render_view_id,
-                   bool audio, bool video) const;
+                   bool audio, bool video);
+
+  // First load the extension's image, then show a balloon for it.
+  void ShowBalloonForExtension(
+      const extensions::Extension* extension);
 
   // Hides the status tray from the desktop. This function is called by
   // RemoveCaptureDeviceTab() when the device usage list becomes empty.
   void Hide();
 
-  // Gets the title of the tab.
-  string16 GetTitle(int render_process_id, int render_view_id) const;
-
-  // Gets the security originator of the tab. It returns a string with no '/'
-  // at the end to display in the UI.
-  string16 GetSecurityOrigin(int render_process_id, int render_view_id) const;
-
   // Updates the status tray menu with the new device list. This call will be
   // triggered by both AddCaptureDeviceTab() and RemoveCaptureDeviceTab().
   void UpdateStatusTrayIconContextMenu();
 
   // Updates the status tray tooltip and image according to which kind of
   // devices are being used. This function is called by
   // UpdateStatusTrayIconContextMenu().
   void UpdateStatusTrayIconDisplay(bool audio, bool video);
 
   // Reference to our status icon - owned by the StatusTray. If null,
   // the platform doesn't support status icons.
   StatusIcon* status_icon_;
 
   // These images are owned by ResourceBundle and need not be destroyed.
   gfx::ImageSkia* mic_image_;
   gfx::ImageSkia* camera_image_;
   gfx::ImageSkia* balloon_image_;
 
   // A list that contains the usage information of the opened capture devices.
   typedef std::vector<CaptureDeviceTab> CaptureDeviceTabs;
   CaptureDeviceTabs tabs_;
+
+  // Tracks the load of extension icons.
+  ImageLoadingTracker tracker_;
+  // The count of times that |tracker_| has been used (0-based).
+  int image_load_index_;
+  // The name of the extension that is currently getting its icon fetched.
+  std::string pending_extension_name_;
+  // The IDS_* value for the message the user will see for the pending balloon.
+  int pending_message_id_;
 };
 
 #endif  // CHROME_BROWSER_MEDIA_MEDIA_STREAM_CAPTURE_INDICATOR_H_