Add frame refresh to VideoCaptureDevice, and buffer pool resurrection.

content/browser/media/capture/desktop_capture_device_aura_unittest.cc

 // Copyright 2013 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 "content/browser/media/capture/desktop_capture_device_aura.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <utility>
 
@@ skipping 42 matching lines @@
                     const uint8_t* v_data,
                     size_t y_stride,
                     size_t u_stride,
                     size_t v_stride,
                     const media::VideoCaptureFormat& frame_format,
                     int clockwise_rotation,
                     const base::TimeTicks& timestamp));
   MOCK_METHOD0(DoReserveOutputBuffer, void(void));
   MOCK_METHOD0(DoOnIncomingCapturedBuffer, void(void));
   MOCK_METHOD0(DoOnIncomingCapturedVideoFrame, void(void));
+  MOCK_METHOD0(DoResurrectLastOutputBuffer, void(void));
   MOCK_METHOD2(OnError,
                void(const tracked_objects::Location& from_here,
                     const std::string& reason));
 
   // Trampoline methods to workaround GMOCK problems with scoped_ptr<>.
   scoped_ptr<Buffer> ReserveOutputBuffer(
       const gfx::Size& dimensions,
       media::VideoPixelFormat format,
       media::VideoPixelStorage storage) override {
     EXPECT_EQ(media::PIXEL_FORMAT_I420, format);
     EXPECT_EQ(media::PIXEL_STORAGE_CPU, storage);
     DoReserveOutputBuffer();
     return scoped_ptr<Buffer>();
   }
   void OnIncomingCapturedBuffer(scoped_ptr<Buffer> buffer,
                                 const media::VideoCaptureFormat& frame_format,
                                 const base::TimeTicks& timestamp) override {
     DoOnIncomingCapturedBuffer();
   }
   void OnIncomingCapturedVideoFrame(
       scoped_ptr<Buffer> buffer,
       const scoped_refptr<media::VideoFrame>& frame,
       const base::TimeTicks& timestamp) override {
     DoOnIncomingCapturedVideoFrame();
   }
-
+  scoped_ptr<Buffer> ResurrectLastOutputBuffer(
+      const gfx::Size& dimensions,
+      media::VideoPixelFormat format,
+      media::VideoPixelStorage storage) override {
+    EXPECT_EQ(media::PIXEL_FORMAT_I420, format);
+    EXPECT_EQ(media::PIXEL_STORAGE_CPU, storage);
+    DoResurrectLastOutputBuffer();
+    return scoped_ptr<Buffer>();
+  }
   double GetBufferPoolUtilization() const override { return 0.0; }
 };
 
 // Test harness that sets up a minimal environment with necessary stubs.
 class DesktopCaptureDeviceAuraTest : public testing::Test {
  public:
   DesktopCaptureDeviceAuraTest()
       : browser_thread_for_ui_(BrowserThread::UI, &message_loop_) {}
   ~DesktopCaptureDeviceAuraTest() override {}
 
@@ skipping 54 matching lines @@
   media::VideoCaptureParams capture_params;
   capture_params.requested_format.frame_size.SetSize(640, 480);
   capture_params.requested_format.frame_rate = kFrameRate;
   capture_params.requested_format.pixel_format = media::PIXEL_FORMAT_I420;
   capture_device->AllocateAndStart(capture_params, std::move(client));
   capture_device->StopAndDeAllocate();
 }
 
 }  // namespace
 }  // namespace content