PPAPI: implement GetSupportedPreviewSizes

ppapi/thunk/ppb_image_capture_api.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 PPAPI_THUNK_PPB_IMAGE_CAPTURE_API_H_
+#define PPAPI_THUNK_PPB_IMAGE_CAPTURE_API_H_
+
+#include <string>
+
+#include "ppapi/c/private/ppb_image_capture_private.h"
+
+namespace ppapi {
+
+class TrackedCallback;
+
+namespace thunk {
+
+class PPB_ImageCapture_API {
+ public:
+  virtual ~PPB_ImageCapture_API() {}
+  virtual int32_t Open(PP_Var camera_source_id,
+                       scoped_refptr<TrackedCallback> callback) = 0;
+  virtual void Close() = 0;
+  virtual int32_t SetConfig(PP_Resource config,
+                            scoped_refptr<TrackedCallback> callback) = 0;
+  virtual int32_t GetConfig(PP_Resource* config,
+                            scoped_refptr<TrackedCallback> callback) = 0;
+  virtual int32_t GetCameraCapabilities(
+      PP_Resource* capabilities,
+      scoped_refptr<TrackedCallback> callback) = 0;
+  virtual int32_t ReuseBuffers() = 0;
+  virtual int32_t CaptureStillImage(
+      PPB_ImageCapture_Private_ShutterCallback shutter_callback,
+      PPB_ImageCapture_Private_PreviewCallback preview_callback,
+      PPB_ImageCapture_Private_JpegCallback jpeg_callback,
+      PPB_ImageCapture_Private_ErrorCallback error_callback,
+      uint64_t* sequence_id) = 0;
+};
+
+}  // namespace thunk
+}  // namespace ppapi
+
+#endif  // PPAPI_THUNK_PPB_IMAGE_CAPTURE_API_H_