[Media controls] Integrate rotate-to-fullscreen with orientation lock

third_party/WebKit/Source/modules/media_controls/MediaControlsRotateToFullscreenDelegate.cpp

 // Copyright 2017 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 "modules/media_controls/MediaControlsRotateToFullscreenDelegate.h"
 
 #include "core/dom/DocumentUserGestureToken.h"
 #include "core/dom/ElementVisibilityObserver.h"
 #include "core/dom/Fullscreen.h"
 #include "core/events/Event.h"
@@ skipping 149 matching lines @@
     return;
   }
 
   // Ignore 180 degree rotations between PortraitPrimary and PortraitSecondary,
   // or between LandscapePrimary and LandscapeSecondary.
   if (previous_screen_orientation == current_screen_orientation_)
     return;
 
   SimpleOrientation video_orientation = ComputeVideoOrientation();
 
-  // Ignore videos that are square/small/etc.
+  // Ignore videos that are too small or of unknown size.
   if (video_orientation == SimpleOrientation::kUnknown)
     return;
 
   MediaControlsImpl& media_controls =
       *static_cast<MediaControlsImpl*>(video_element_->GetMediaControls());
 
   {
     UserGestureIndicator gesture(
         DocumentUserGestureToken::Create(&video_element_->GetDocument()));
 
@@ skipping 43 matching lines @@
   return SimpleOrientation::kUnknown;
 }
 
 DEFINE_TRACE(MediaControlsRotateToFullscreenDelegate) {
   EventListener::Trace(visitor);
   visitor->Trace(video_element_);
   visitor->Trace(visibility_observer_);
 }
 
 }  // namespace blink