Record clicks on download and overflow buttons in media controls.

BUG=650592

Review-Url: https://codereview.chromium.org/2370233002
Cr-Commit-Position: refs/heads/master@{#421329}

third_party/WebKit/Source/core/html/shadow/MediaControlElements.cpp

@@ -598,6 +598,11 @@ MediaControlOverflowMenuButtonElement* MediaControlOverflowMenuButtonElement::cr
 void MediaControlOverflowMenuButtonElement::defaultEventHandler(Event* event)
 {
     if (event->type() == EventTypeNames::click) {
+        if (mediaControls().overflowMenuVisible())
+            Platform::current()->recordAction(UserMetricsAction("Media.Controls.OverflowClose"));
+        else
+            Platform::current()->recordAction(UserMetricsAction("Media.Controls.OverflowOpen"));
+
         mediaControls().toggleOverflowMenu();
         event->setDefaultHandled();
     }
@@ -662,6 +667,7 @@ void MediaControlDownloadButtonElement::defaultEventHandler(Event* event)
 {
     const KURL& url = mediaElement().currentSrc();
     if (event->type() == EventTypeNames::click && !(url.isNull() || url.isEmpty())) {
+        Platform::current()->recordAction(UserMetricsAction("Media.Controls.Download"));
         if (!m_anchor) {
             HTMLAnchorElement* anchor = HTMLAnchorElement::create(document());
             anchor->setAttribute(HTMLNames::downloadAttr, "");

tools/metrics/actions/actions.xml

@@ -8661,6 +8661,11 @@ should be able to be added at any place in this file.
   </description>
 </action>
 
+<action name="Media.Controls.Download">
+  <owner>mlamouri@chromium.org</owner>
+  <description>The user clicked on the controls' download button.</description>
+</action>
+
 <action name="Media.Controls.EnterFullscreen">
   <owner>mlamouri@chromium.org</owner>
   <description>The user entered fullscreen mode from the controls.</description>
@@ -8676,6 +8681,16 @@ should be able to be added at any place in this file.
   <description>The user muted a media element from the controls.</description>
 </action>
 
+<action name="Media.Controls.OverflowClose">
+  <owner>mlamouri@chromium.org</owner>
+  <description>The user closed the overflow menu via the controls.</description>
+</action>
+
+<action name="Media.Controls.OverflowOpen">
+  <owner>mlamouri@chromium.org</owner>
+  <description>The user opened the overflow menu via the controls.</description>
+</action>
+
 <action name="Media.Controls.Pause">
   <owner>mlamouri@chromium.org</owner>
   <description>The user paused a media element from the controls.</description>