cc::VideoResourceUpdater: NOTREACHED;return; replaced by DCHECK.

cc/resources/video_resource_updater.cc

 // Copyright 2013 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 "cc/resources/video_resource_updater.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 414 matching lines @@
       break;
     case media::PIXEL_FORMAT_Y16:
       bits_per_channel = 16;
       break;
   }
 
   // TODO(dshwang): support PIXEL_FORMAT_Y16. crbug.com/624436
   DCHECK_NE(bits_per_channel, 16);
 
   // Only YUV software video frames are supported.
-  if (!media::IsYuvPlanar(input_frame_format)) {
-    NOTREACHED() << media::VideoPixelFormatToString(input_frame_format);
-    return VideoFrameExternalResources();
-  }
+  DCHECK(media::IsYuvPlanar(input_frame_format));
 
   const bool software_compositor = context_provider_ == NULL;
 
   ResourceFormat output_resource_format =
       resource_provider_->YuvResourceFormat(bits_per_channel);
 
   // If GPU compositing is enabled, but the output resource format
   // returned by the resource provider is RGBA_8888, then a GPU driver
   // bug workaround requires that YUV frames must be converted to RGB
   // before texture upload.
@@ skipping 352 matching lines @@
   if (lost_resource) {
     resource_it->clear_refs();
     updater->DeleteResource(resource_it);
     return;
   }
 
   resource_it->remove_ref();
 }
 
 }  // namespace cc