add components for integration test which will detect breakage of media pipeline with video captu...

webkit/support/test_media_stream_client.cc

+// Copyright (c) 2011 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 "webkit/support/test_media_stream_client.h"
+
+#include "googleurl/src/gurl.h"
+#include "media/base/message_loop_factory.h"
+#include "media/base/pipeline.h"
+#include "media/video/capture/fake_capture_video_decoder.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebUserMediaClientMock.h"
+
+namespace {
+
+static const int kVideoCaptureWidth = 352;
+static const int kVideoCaptureHeight = 288;
+static const int kVideoCaptureFramePerSecond = 30;
+
+}  // namespace
+
+namespace webkit_support {
+
+TestMediaStreamClient::TestMediaStreamClient(
+    WebKit::WebUserMediaClientMock* userMediaClientMock)
+    : m_userMediaClientMock(userMediaClientMock) {
+}
+
+scoped_refptr<media::VideoDecoder> TestMediaStreamClient::GetVideoDecoder(
+    const GURL& url, media::MessageLoopFactory* message_loop_factory) {
+  if (!m_userMediaClientMock)
+    return NULL;
+
+  bool raw_media = m_userMediaClientMock->isStream(url);
+  media::VideoDecoder* decoder = NULL;
+  if (raw_media) {
+    media::VideoCapture::VideoCaptureCapability capability;
+    capability.width = kVideoCaptureWidth;
+    capability.height = kVideoCaptureHeight;
+    capability.max_fps = kVideoCaptureFramePerSecond;
+    capability.expected_capture_delay = 0;
+    capability.raw_type = media::VideoFrame::I420;
+    capability.interlaced = false;
+
+    decoder = new media::FakeCaptureVideoDecoder(
+        message_loop_factory->GetMessageLoopProxy("CaptureVideoDecoder").get(),
+        capability);
+  }
+  return decoder;
+}
+
+}  // namespace webkit_support