Add multi-planar functions to GpuMemoryBuffer

content/browser/renderer_host/media/video_capture_texture_wrapper.cc

Index: content/browser/renderer_host/media/video_capture_texture_wrapper.cc
diff --git a/content/browser/renderer_host/media/video_capture_texture_wrapper.cc b/content/browser/renderer_host/media/video_capture_texture_wrapper.cc
index e02b6fc92347ff5c38e676e1bcb20dd526156539..537cd5190e3a47b12fd5690f61d6096d0954e712 100644
--- a/content/browser/renderer_host/media/video_capture_texture_wrapper.cc
+++ b/content/browser/renderer_host/media/video_capture_texture_wrapper.cc
@@ -283,7 +283,11 @@ void VideoCaptureTextureWrapper::TextureWrapperDelegate::OnIncomingCapturedData(
   gpu_memory_buffers_.pop();
   DCHECK(gpu_memory_buffer.get());
 
-  uint8* mapped_buffer = static_cast<uint8*>(gpu_memory_buffer->Map());
+  void* mapped_buffers[gpu_memory_buffer->GetNumberOfPlanes()];
+  bool map_completed = gpu_memory_buffer->Map(mapped_buffers);
+  DCHECK(map_completed);
+
+  uint8* mapped_buffer = static_cast<uint8*>(mapped_buffers[0]);

[reveman, 2015/03/23 22:24:01]

If you're assuming one plane then you might as well do:

void* mapped_buffer = NULL;
gpu_memory_buffer->Map(&mapped_buffer);

[emircan, 2015/03/24 16:52:26]

Done. I wasn't sure if these functions would be supporting multi buffers later,
so I wanted to leave some functionality for that.

   DCHECK(mapped_buffer);
   libyuv::ARGBCopy(
       reinterpret_cast<uint8*>(argb_buffer->data()), frame_size.width() * 4,