Adds keyboard functionality for videos.

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

Index: third_party/WebKit/Source/modules/media_controls/MediaControlsMediaEventListener.cpp
diff --git a/third_party/WebKit/Source/modules/media_controls/MediaControlsMediaEventListener.cpp b/third_party/WebKit/Source/modules/media_controls/MediaControlsMediaEventListener.cpp
index 97bbd28d76a140207b1dda0f5af4b72fa6f187de..955a6f045d7f074ee5acd774e0ff40cacc470f3a 100644
--- a/third_party/WebKit/Source/modules/media_controls/MediaControlsMediaEventListener.cpp
+++ b/third_party/WebKit/Source/modules/media_controls/MediaControlsMediaEventListener.cpp
@@ -32,6 +32,9 @@ void MediaControlsMediaEventListener::Attach() {
   GetMediaElement().addEventListener(EventTypeNames::error, this, false);
   GetMediaElement().addEventListener(EventTypeNames::loadedmetadata, this,
                                      false);
+  GetMediaElement().addEventListener(EventTypeNames::keypress, this, false);
+  GetMediaElement().addEventListener(EventTypeNames::keydown, this, false);
+  GetMediaElement().addEventListener(EventTypeNames::keyup, this, false);
 
   // Listen to two different fullscreen events in order to make sure the new and
   // old APIs are handled.
@@ -142,8 +145,16 @@ void MediaControlsMediaEventListener::handleEvent(
 
   // Keypress events.
   if (event->type() == EventTypeNames::keypress) {
-    if (event->currentTarget() == media_controls_->PanelElement())
+    if (event->currentTarget() == media_controls_->PanelElement()) {
       media_controls_->OnPanelKeypress();
+      return;
+    }
+  }
+
+  if (event->type() == EventTypeNames::keypress ||
+      event->type() == EventTypeNames::keydown ||
+      event->type() == EventTypeNames::keyup) {
+    media_controls_->OnMediaKeyboardEvent(event);
     return;
   }