Vanquish the remnants of media::MessageLoopFactory.

media/filters/gpu_video_decoder.cc

Index: media/filters/gpu_video_decoder.cc
diff --git a/media/filters/gpu_video_decoder.cc b/media/filters/gpu_video_decoder.cc
index b05698a7fa9ca5911a9ee5e162474c2660231266..b2e5670336de3485d57b61fb7cb5b1739801c3d3 100644
--- a/media/filters/gpu_video_decoder.cc
+++ b/media/filters/gpu_video_decoder.cc
@@ -51,11 +51,10 @@ GpuVideoDecoder::BufferData::BufferData(
 GpuVideoDecoder::BufferData::~BufferData() {}
 
 GpuVideoDecoder::GpuVideoDecoder(
-    const scoped_refptr<base::MessageLoopProxy>& gvd_loop_proxy,
-    const scoped_refptr<base::MessageLoopProxy>& vda_loop_proxy,
+    const scoped_refptr<base::MessageLoopProxy>& message_loop,
     const scoped_refptr<Factories>& factories)
-    : gvd_loop_proxy_(gvd_loop_proxy),
-      vda_loop_proxy_(vda_loop_proxy),
+    : gvd_loop_proxy_(message_loop),
+      vda_loop_proxy_(factories->GetMessageLoop()),
       factories_(factories),
       state_(kNormal),
       demuxer_read_in_progress_(false),