Add support for multiple V4L2 video devices of the same type.

media/gpu/gpu_video_decode_accelerator_factory.cc

 // Copyright 2016 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/gpu/gpu_video_decode_accelerator_factory.h"
 
 #include "base/memory/ptr_util.h"
 #include "gpu/command_buffer/service/gpu_preferences.h"
 #include "media/gpu/gpu_video_accelerator_util.h"
 #include "media/gpu/media_gpu_export.h"
@@ skipping 157 matching lines @@
   return decoder;
 }
 #endif
 
 #if defined(OS_CHROMEOS) && defined(USE_V4L2_CODEC)
 std::unique_ptr<VideoDecodeAccelerator>
 GpuVideoDecodeAcceleratorFactory::CreateV4L2VDA(
     const gpu::GpuDriverBugWorkarounds& workarounds,
     const gpu::GpuPreferences& gpu_preferences) const {
   std::unique_ptr<VideoDecodeAccelerator> decoder;
-  scoped_refptr<V4L2Device> device = V4L2Device::Create(V4L2Device::kDecoder);
+  scoped_refptr<V4L2Device> device = V4L2Device::Create();
   if (device.get()) {
     decoder.reset(new V4L2VideoDecodeAccelerator(
         gl::GLSurfaceEGL::GetHardwareDisplay(), get_gl_context_cb_,
         make_context_current_cb_, device));
   }
   return decoder;
 }
 
 std::unique_ptr<VideoDecodeAccelerator>
 GpuVideoDecodeAcceleratorFactory::CreateV4L2SVDA(
     const gpu::GpuDriverBugWorkarounds& workarounds,
     const gpu::GpuPreferences& gpu_preferences) const {
   std::unique_ptr<VideoDecodeAccelerator> decoder;
-  scoped_refptr<V4L2Device> device = V4L2Device::Create(V4L2Device::kDecoder);
+  scoped_refptr<V4L2Device> device = V4L2Device::Create();
   if (device.get()) {
     decoder.reset(new V4L2SliceVideoDecodeAccelerator(
         device, gl::GLSurfaceEGL::GetHardwareDisplay(), get_gl_context_cb_,
         make_context_current_cb_));
   }
   return decoder;
 }
 #endif
 
 #if defined(OS_CHROMEOS) && defined(ARCH_CPU_X86_FAMILY)
@@ skipping 38 matching lines @@
     const BindGLImageCallback& bind_image_cb,
     const GetGLES2DecoderCallback& get_gles2_decoder_cb)
     : get_gl_context_cb_(get_gl_context_cb),
       make_context_current_cb_(make_context_current_cb),
       bind_image_cb_(bind_image_cb),
       get_gles2_decoder_cb_(get_gles2_decoder_cb) {}
 
 GpuVideoDecodeAcceleratorFactory::~GpuVideoDecodeAcceleratorFactory() {}
 
 }  // namespace media