Revert of Plumb decoded video pixel format from GPU process to renderer.

media/gpu/android_video_decode_accelerator_unittest.cc

Index: media/gpu/android_video_decode_accelerator_unittest.cc
diff --git a/media/gpu/android_video_decode_accelerator_unittest.cc b/media/gpu/android_video_decode_accelerator_unittest.cc
index d9f0de5da3e734a39dab8b7d2a51bf6b7422b379..69450136c3b18a816942c1f8cfe5b1f019d954e8 100644
--- a/media/gpu/android_video_decode_accelerator_unittest.cc
+++ b/media/gpu/android_video_decode_accelerator_unittest.cc
@@ -45,7 +45,6 @@
 
   // VideoDecodeAccelerator::Client implementation.
   void ProvidePictureBuffers(uint32_t requested_num_of_buffers,
-                             VideoPixelFormat format,
                              uint32_t textures_per_buffer,
                              const gfx::Size& dimensions,
                              uint32_t texture_target) override {}