Add VideoCaptureDevice::GetDeviceSupportedFormats to interface + implementation for Linux and Fake

media/video/capture/fake_video_capture_device.cc

 // 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.
 
 #include "media/video/capture/fake_video_capture_device.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 131 matching lines @@
       return;  // Wrong state.
   }
   capture_thread_.Stop();
   state_ = kIdle;
 }
 
 const VideoCaptureDevice::Name& FakeVideoCaptureDevice::device_name() {
   return device_name_;
 }
 
+void FakeVideoCaptureDevice::GetDeviceSupportedFormats(
+    const std::string& device_name,
+    VideoCaptureFormats* capture_formats) {
+  media::VideoCaptureCapability capture_format;
+  capture_format.color = media::PIXEL_FORMAT_I420;
+  capture_format.width = 640;
+  capture_format.height = 480;
+  capture_format.frame_rate = GetFrameRate();
+  capture_formats->insert(capture_formats->end(), capture_format);
+}
+
+int FakeVideoCaptureDevice::GetFrameRate() const {
+  return (1000 / kFakeCaptureTimeoutMs);
+}
+
 void FakeVideoCaptureDevice::OnCaptureTask() {
   if (state_ != kCapturing) {
     return;
   }
 
   const size_t frame_size = VideoFrame::AllocationSize(
       VideoFrame::I420,
       gfx::Size(capture_format_.width, capture_format_.height));
   memset(fake_frame_.get(), 0, frame_size);
 
@@ skipping 84 matching lines @@
       media::VideoCaptureCapability(800,
                                     600,
                                     30,
                                     PIXEL_FORMAT_I420,
                                     0,
                                     false,
                                     VariableResolutionVideoCaptureDevice));
 
   capabilities_roster_index_ = 0;
 }
-
 }  // namespace media