Add optional max supported resolution on MediaFoundationVideoEncodeAccelerator

media/gpu/media_foundation_video_encode_accelerator_win.h

 // 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.
 
 #ifndef MEDIA_GPU_MEDIA_FOUNDATION_VIDEO_ENCODE_ACCELERATOR_WIN_H_
 #define MEDIA_GPU_MEDIA_FOUNDATION_VIDEO_ENCODE_ACCELERATOR_WIN_H_
 
 #include <mfapi.h>
 #include <mfidl.h>
 #include <stdint.h>
@@ skipping 58 matching lines @@
 
   // Creates an hardware encoder backed IMFTransform instance on |encoder_|.
   bool CreateHardwareEncoderMFT();
 
   // Initializes and allocates memory for input and output samples.
   bool InitializeInputOutputSamples();
 
   // Initializes encoder parameters for real-time use.
   bool SetEncoderModes();
 
+  // Returns true if we can initialize input and output samples with the given
+  // frame size, otherwise false.
+  bool IsResolutionSupported(const gfx::Size& size);
+
   // Helper function to notify the client of an error on
   // |main_client_task_runner_|.
   void NotifyError(VideoEncodeAccelerator::Error error);
 
   // Encoding tasks to be run on |encoder_thread_|.
   void EncodeTask(scoped_refptr<VideoFrame> frame, bool force_keyframe);
 
   // Checks for and copies encoded output on |encoder_thread_|.
   void ProcessOutput();
 
@@ skipping 65 matching lines @@
   // other destructors run.
   base::WeakPtrFactory<MediaFoundationVideoEncodeAccelerator>
       encoder_task_weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaFoundationVideoEncodeAccelerator);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_GPU_MEDIA_FOUNDATION_VIDEO_ENCODE_ACCELERATOR_WIN_H_