Media Controls: move timeline related code to modules.

third_party/WebKit/Source/modules/media_controls/elements/MediaControlCastButtonElement.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/elements/MediaControlCastButtonElement.h"
 
 #include "core/InputTypeNames.h"
 #include "core/dom/ClientRect.h"
 #include "core/events/Event.h"
 #include "core/html/HTMLMediaElement.h"
 #include "modules/media_controls/MediaControlsImpl.h"
 #include "modules/media_controls/elements/MediaControlElementsHelper.h"
+#include "platform/Histogram.h"
 #include "public/platform/Platform.h"
 
 namespace blink {
 
 namespace {
 
 Element* ElementFromCenter(Element& element) {
   ClientRect* client_rect = element.getBoundingClientRect();
   int center_x =
       static_cast<int>((client_rect->left() + client_rect->right()) / 2);
@@ skipping 99 matching lines @@
 
 void MediaControlCastButtonElement::RecordMetrics(CastOverlayMetrics metric) {
   DCHECK(is_overlay_button_);
   DEFINE_STATIC_LOCAL(
       EnumerationHistogram, overlay_histogram,
       ("Cast.Sender.Overlay", static_cast<int>(CastOverlayMetrics::kCount)));
   overlay_histogram.Count(static_cast<int>(metric));
 }
 
 }  // namespace blink