Revert of Remove media::VideoRenderer::SetPlaybackRate().

media/filters/video_renderer_impl_unittest.cc

Index: media/filters/video_renderer_impl_unittest.cc
diff --git a/media/filters/video_renderer_impl_unittest.cc b/media/filters/video_renderer_impl_unittest.cc
index efa45fb1ab52686104ea8efadb10a7d5d3d72982..c7eb556bc7170f26b5cd8d540d34dbdaf83caa25 100644
--- a/media/filters/video_renderer_impl_unittest.cc
+++ b/media/filters/video_renderer_impl_unittest.cc
@@ -27,6 +27,7 @@
 using ::testing::_;
 using ::testing::AnyNumber;
 using ::testing::AtLeast;
+using ::testing::InSequence;
 using ::testing::Invoke;
 using ::testing::NiceMock;
 using ::testing::NotNull;
@@ -93,6 +94,11 @@
 
     EXPECT_CALL(*decoder_, Reset(_))
         .WillRepeatedly(Invoke(this, &VideoRendererImplTest::FlushRequested));
+
+    InSequence s;
+
+    // Set playback rate before anything else happens.
+    renderer_->SetPlaybackRate(1.0f);
 
     // Initialize, we shouldn't have any reads.
     InitializeRenderer(PIPELINE_OK, low_delay);
@@ -543,6 +549,7 @@
 }
 
 TEST_F(VideoRendererImplTest, VideoDecoder_InitFailure) {
+  InSequence s;
   InitializeRenderer(DECODER_ERROR_NOT_SUPPORTED, false);
   Stop();
 }