Fix V4L2 device failed to create on veyron board

media/gpu/v4l2_device.cc

 // Copyright 2014 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 <libdrm/drm_fourcc.h>
 #include <linux/videodev2.h>
 #include <string.h>
 
 #include "base/numerics/safe_conversions.h"
 #include "build/build_config.h"
 #include "media/gpu/generic_v4l2_device.h"
 #if defined(ARCH_CPU_ARMEL)
 #include "media/gpu/tegra_v4l2_device.h"
 #endif
 
 namespace media {
 
 V4L2Device::V4L2Device(Type type) : type_(type) {}
 
 V4L2Device::~V4L2Device() {}
 
 // static
+bool V4L2Device::IsUsingLibV4L2() {
+#if defined(USE_LIBV4L2)
+  return true;
+#else
+  return false;
+#endif
+}
+
+// static
 scoped_refptr<V4L2Device> V4L2Device::Create(Type type) {
   DVLOG(3) << __PRETTY_FUNCTION__;
 
   scoped_refptr<GenericV4L2Device> generic_device(new GenericV4L2Device(type));
   if (generic_device->Initialize())
     return generic_device;
 
 #if defined(ARCH_CPU_ARMEL)
   scoped_refptr<TegraV4L2Device> tegra_device(new TegraV4L2Device(type));
   if (tegra_device->Initialize())
@@ skipping 279 matching lines @@
   const auto iter = std::find_if(
       supported_profiles.begin(), supported_profiles.end(),
       [profile](const media::VideoDecodeAccelerator::SupportedProfile& p) {
         return profile == p.profile;
       });
 
   return iter != supported_profiles.end();
 }
 
 }  //  namespace media