Refactored pixel format resize operations in media/video/capture into a function called VideoCaptu…

content/browser/renderer_host/media/video_capture_controller.cc

Index: content/browser/renderer_host/media/video_capture_controller.cc
diff --git a/content/browser/renderer_host/media/video_capture_controller.cc b/content/browser/renderer_host/media/video_capture_controller.cc
index 8ff97bdf767d93c8821ef401ec33b229dfc31348..9e4ad42143cebeca9ae378e4e7be3db206a7a44f 100644
--- a/content/browser/renderer_host/media/video_capture_controller.cc
+++ b/content/browser/renderer_host/media/video_capture_controller.cc
@@ -469,6 +469,10 @@ void VideoCaptureController::VideoCaptureDeviceClient::OnIncomingCapturedData(
       NOTREACHED();
   }
 
+  // Given length can be greater than the required buffer size when paddings are

[mcasas, 2015/02/04 23:02:39]

s/when paddings are applied or alignments are changed/ because of paddings
and/or alignments/

+  // applied or alignments are changed, but it cannot be less.
+  DCHECK_GE(static_cast<size_t>(length), frame_format.ImageAllocationSize());
+
   if (libyuv::ConvertToI420(data,
                             length,
                             yplane,