[Video] Disable bg optimization if avg keyframe distance is >10s

media/blink/webmediaplayer_impl_unittest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/blink/webmediaplayer_impl.h"
 
 #include <stdint.h>
 
 #include <memory>
 
@@ skipping 245 matching lines @@
     } else {
       scoped_feature_list_.InitAndDisableFeature(
           kBackgroundVideoTrackOptimization);
     }
   }
 
   bool ShouldDisableVideoWhenHidden() const {
     return wmpi_->ShouldDisableVideoWhenHidden();
   }
 
+  void SetVideoKeyframeDistanceAverage(base::TimeDelta value) {
+    PipelineStatistics statistics;
+    statistics.video_keyframe_distance_average = value;
+    wmpi_->SetPipelineStatisticsForTest(statistics);
+  }
+
   // "Renderer" thread.
   base::MessageLoop message_loop_;
 
   // "Media" thread. This is necessary because WMPI destruction waits on a
   // WaitableEvent.
   base::Thread media_thread_;
 
   // Blink state.
   blink::WebFrameClient web_frame_client_;
   blink::WebView* web_view_;
@@ skipping 491 matching lines @@
   EXPECT_CALL(delegate_, DidPlay(_, true, true, false, _));
   client_.set_is_autoplaying_muted(false);
   wmpi_->setVolume(1.0);
 }
 
 TEST_F(WebMediaPlayerImplTest, ShouldDisableVideoWhenHidden) {
   InitializeWebMediaPlayerImpl();
 
   SetMetadata(true, true);
   SetBackgroundVideoOptimization(true);
+  SetVideoKeyframeDistanceAverage(base::TimeDelta::FromSeconds(5));
   EXPECT_TRUE(ShouldDisableVideoWhenHidden());
 
-  SetMetadata(true, true);
   SetBackgroundVideoOptimization(false);
   EXPECT_FALSE(ShouldDisableVideoWhenHidden());
 
+  SetBackgroundVideoOptimization(true);
+  SetVideoKeyframeDistanceAverage(base::TimeDelta::FromSeconds(100));
+  EXPECT_FALSE(ShouldDisableVideoWhenHidden());
+
+  SetVideoKeyframeDistanceAverage(base::TimeDelta::FromSeconds(5));
   SetMetadata(false, true);
-  SetBackgroundVideoOptimization(true);
   EXPECT_FALSE(ShouldDisableVideoWhenHidden());
 
   SetMetadata(true, false);
-  SetBackgroundVideoOptimization(true);
   EXPECT_FALSE(ShouldDisableVideoWhenHidden());
 }
 
 }  // namespace media