V4L2(S)VDA: Check if device handles profile for supported fourccs on init.

content/common/gpu/media/v4l2_device.h

 // 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.
 //
 // This file defines the V4L2Device interface which is used by the
 // V4L2DecodeAccelerator class to delegate/pass the device specific
 // handling of any of the functionalities.
 
 #ifndef CONTENT_COMMON_GPU_MEDIA_V4L2_DEVICE_H_
 #define CONTENT_COMMON_GPU_MEDIA_V4L2_DEVICE_H_
@@ skipping 105 matching lines @@
   // Get minimum and maximum resolution for fourcc |pixelformat| and store to
   // |min_resolution| and |max_resolution|.
   void GetSupportedResolution(uint32_t pixelformat, gfx::Size* min_resolution,
                               gfx::Size* max_resolution);
 
   // Return supported profiles for decoder, including only profiles for given
   // fourcc |pixelformats|.
   media::VideoDecodeAccelerator::SupportedProfiles GetSupportedDecodeProfiles(
       const size_t num_formats, const uint32_t pixelformats[]);
 
+  // Return true if the device supports |profile|, taking into account only
+  // fourccs from the given array of |pixelformats| of size |num_formats|.
+  bool SupportsDecodeProfileForV4L2PixelFormats(
+      media::VideoCodecProfile profile,
+      const size_t num_formats,
+      const uint32_t pixelformats[]);
+
  protected:
   friend class base::RefCountedThreadSafe<V4L2Device>;
   explicit V4L2Device(Type type);
   virtual ~V4L2Device();
 
   const Type type_;
 };
 
 }  //  namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_V4L2_DEVICE_H_