Don't force clearing of textures that the HW decoder will overwrite.

content/common/gpu/media/gpu_video_decode_accelerator.cc

Index: content/common/gpu/media/gpu_video_decode_accelerator.cc
===================================================================
--- content/common/gpu/media/gpu_video_decode_accelerator.cc	(revision 172239)
+++ content/common/gpu/media/gpu_video_decode_accelerator.cc	(working copy)
@@ -225,11 +225,7 @@
       NotifyError(media::VideoDecodeAccelerator::INVALID_ARGUMENT);
       return;
     }
-    if (!texture_manager->ClearRenderableLevels(command_decoder, info)) {
-      DLOG(FATAL) << "Failed to Clear texture id " << texture_ids[i];
-      NotifyError(media::VideoDecodeAccelerator::PLATFORM_FAILURE);
-      return;
-    }
+    texture_manager->SetLevelCleared(info, GL_TEXTURE_2D, 0);

[Ami GONE FROM CHROMIUM, 2012/12/11 17:20:01]

The texture target may not be GL_TEXTURE_2D (see ProvidePictureBuffers for
example).

     uint32 service_texture_id;
     if (!command_decoder->GetServiceTextureId(
             texture_ids[i], &service_texture_id)) {