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 6e70356bec8bcb95a2751500dd1281b0fbcfa79f..d88b7c2ac8689311554e5f85994f6cbd7545d29b 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -1423,7 +1423,9 @@ 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