FakeVideoCaptureDevice: add support for capturing into Dma-Bufs using VGEM in CrOs

content/browser/media/capture/web_contents_video_capture_device_unittest.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 "content/browser/media/capture/web_contents_video_capture_device.h"
 
 #include "base/bind_helpers.h"
 #include "base/debug/debugger.h"
 #include "base/run_loop.h"
 #include "base/test/test_timeouts.h"
@@ skipping 379 matching lines @@
           buffer_handle_(buffer_handle.Pass()) {
       DCHECK(pool_.get());
     }
     int id() const override { return id_; }
     size_t size() const override { return buffer_handle_->size(); }
     void* data() override { return buffer_handle_->data(); }
     gfx::GpuMemoryBufferType GetType() override {
       return gfx::SHARED_MEMORY_BUFFER;
     }
     ClientBuffer AsClientBuffer() override { return nullptr; }
+    base::PlatformFile AsPlatformFile() override { return 0; }
 
    private:
     ~AutoReleaseBuffer() override { pool_->RelinquishProducerReservation(id_); }
 
     const int id_;
     const scoped_refptr<VideoCaptureBufferPool> pool_;
     const scoped_ptr<VideoCaptureBufferPool::BufferHandle> buffer_handle_;
   };
 
   scoped_refptr<VideoCaptureBufferPool> buffer_pool_;
@@ skipping 464 matching lines @@
   source()->SetSolidColor(SK_ColorGREEN);
   ASSERT_NO_FATAL_FAILURE(client_observer()->WaitForNextColor(SK_ColorGREEN));
   source()->SetSolidColor(SK_ColorRED);
   ASSERT_NO_FATAL_FAILURE(client_observer()->WaitForNextColor(SK_ColorRED));
 
   device()->StopAndDeAllocate();
 }
 
 }  // namespace
 }  // namespace content