PPAPI: implement GetSupportedPreviewSizes

content/renderer/pepper/pepper_platform_image_capture.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// 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 CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_VIDEO_CAPTURE_H_
 #define CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_VIDEO_CAPTURE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
-#include "base/time/time.h"
 #include "content/common/media/video_capture.h"
 #include "media/video/capture/video_capture_types.h"
 
 class GURL;
 
 namespace content {
 class PepperMediaDeviceManager;
-class PepperVideoCaptureHost;
+class PepperImageCaptureHost;
 
 // This object must only be used on the thread it's constructed on.
-class PepperPlatformVideoCapture {
+class PepperPlatformImageCapture {
  public:
-  PepperPlatformVideoCapture(int render_frame_id,
+  PepperPlatformImageCapture(int render_frame_id,
                              const std::string& device_id,
                              const GURL& document_url,
-                             PepperVideoCaptureHost* handler);
-  virtual ~PepperPlatformVideoCapture();
+                             PepperImageCaptureHost* handler);
+  virtual ~PepperPlatformImageCapture();
 
   // Detaches the event handler and stops sending notifications to it.
   void DetachEventHandler();
 
-  void StartCapture(const media::VideoCaptureParams& params);
-  void StopCapture();
-
+  void GetPreviewSizes();
  private:
   void OnDeviceOpened(int request_id, bool succeeded, const std::string& label);
-  void OnStateUpdate(VideoCaptureState state);
-  void OnFrameReady(const scoped_refptr<media::VideoFrame>& frame,
-                    const media::VideoCaptureFormat& format,
-                    const base::TimeTicks& estimated_capture_time);
+
+  // Called by VideoCaptureImplManager.
+  void OnDeviceSupportedFormatsEnumerated(
+      const media::VideoCaptureFormats& formats);
 
   // Can return NULL if the RenderFrame referenced by |render_frame_id_| has
   // gone away.
   PepperMediaDeviceManager* GetMediaDeviceManager();
 
   const int render_frame_id_;
   const std::string device_id_;
 
   std::string label_;
   int session_id_;
   base::Closure release_device_cb_;
-  base::Closure stop_capture_cb_;
 
-  PepperVideoCaptureHost* handler_;
+  PepperImageCaptureHost* handler_;
 
   // Whether we have a pending request to open a device. We have to make sure
   // there isn't any pending request before this object goes away.
   bool pending_open_device_;
   int pending_open_device_id_;
 
   base::ThreadChecker thread_checker_;
 
-  base::WeakPtrFactory<PepperPlatformVideoCapture> weak_factory_;
+  base::WeakPtrFactory<PepperPlatformImageCapture> weak_factory_;
 
-  DISALLOW_COPY_AND_ASSIGN(PepperPlatformVideoCapture);
+  DISALLOW_COPY_AND_ASSIGN(PepperPlatformImageCapture);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_VIDEO_CAPTURE_H_