Disable GMB VideoFrames if GPU compositing is disabled.

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index 30047189f7ce449c5f3602d990c9f0c36cad7b10..4af7fec173a2b0cae0cbf1d5b11a4ee3a78609c1 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -1469,7 +1469,9 @@ media::GpuVideoAcceleratorFactories* RenderThreadImpl::GetGpuFactories() {
         !cmd_line->HasSwitch(switches::kDisableAcceleratedVideoDecode);
     const bool enable_gpu_memory_buffer_video_frames =
 #if defined(OS_MACOSX) || defined(OS_LINUX)
-        !cmd_line->HasSwitch(switches::kDisableGpuMemoryBufferVideoFrames);
+        !cmd_line->HasSwitch(switches::kDisableGpuMemoryBufferVideoFrames) &&
+        !cmd_line->HasSwitch(switches::kDisableGpuCompositing) &&
+        !gpu_channel_host->gpu_info().software_rendering;
 #else
         cmd_line->HasSwitch(switches::kEnableGpuMemoryBufferVideoFrames);
 #endif