PPAPI: implement GetSupportedPreviewSizes

ppapi/proxy/camera_capabilities_resource.h

+// Copyright 2015 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_PROXY_CAMERA_CAPABILITIES_RESOURCE_H_
+#define PPAPI_PROXY_CAMERA_CAPABILITIES_RESOURCE_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "ppapi/proxy/ppapi_proxy_export.h"
+#include "ppapi/shared_impl/resource.h"
+#include "ppapi/thunk/ppb_camera_capabilities_api.h"
+
+namespace ppapi {
+namespace proxy {
+
+class ImageCaptureResource;
+
+class PPAPI_PROXY_EXPORT CameraCapabilitiesResource
+    : public Resource,
+      public thunk::PPB_CameraCapabilities_API {
+ public:
+  CameraCapabilitiesResource(PP_Instance instance,
+                             const std::vector<PP_Size>& preview_sizes);
+
+  ~CameraCapabilitiesResource() override;
+
+  // Resource overrides.
+  thunk::PPB_CameraCapabilities_API* AsPPB_CameraCapabilities_API() override;
+
+  // PPB_CameraCapabilities_API implementation.
+  void GetSupportedPreviewSizes(int32_t* array_size,
+                                PP_Size** preview_sizes) override;
+
+ private:
+  int32_t num_preview_sizes_;
+  scoped_ptr<PP_Size[]> preview_sizes_;
+
+  DISALLOW_COPY_AND_ASSIGN(CameraCapabilitiesResource);
+};
+
+}  // namespace proxy
+}  // namespace ppapi
+
+#endif  // PPAPI_PROXY_CAMERA_CAPABILITIES_RESOURCE_H_