VideoCaptureDeviceLinux: Add support for SPLANE+DMABUF V4L2 type capture

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 399 matching lines @@
           pool_(pool),
           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;
     }
+    base::PlatformFile AsPlatformFile() const override {
+      return base::PlatformFile();
+    }
     ClientBuffer AsClientBuffer() override { return nullptr; }
 
    private:
     ~AutoReleaseBuffer() override { pool_->RelinquishProducerReservation(id_); }
 
     const int id_;
     const scoped_refptr<VideoCaptureBufferPool> pool_;
     const scoped_ptr<VideoCaptureBufferPool::BufferHandle> buffer_handle_;
   };
 
@@ skipping 654 matching lines @@
         SK_ColorBLACK, gfx::Size(kTestWidth,
                                  kTestWidth * arbitrary_source_size.height() /
                                      arbitrary_source_size.width())));
   }
 
   device()->StopAndDeAllocate();
 }
 
 }  // namespace
 }  // namespace content