Add a download button to the media player

content/child/blink_platform_impl.cc

Index: content/child/blink_platform_impl.cc
diff --git a/content/child/blink_platform_impl.cc b/content/child/blink_platform_impl.cc
index c65fc9b23a312eb663cf93da0e3b06e4e538b66d..b02630358357766d44b5b840c59dd888a1f5e8ce 100644
--- a/content/child/blink_platform_impl.cc
+++ b/content/child/blink_platform_impl.cc
@@ -264,6 +264,8 @@ static int ToMessageID(WebLocalizedString::Name name) {
       return IDS_MEDIA_OVERFLOW_MENU_PLAY;
     case WebLocalizedString::OverflowMenuPause:
       return IDS_MEDIA_OVERFLOW_MENU_PAUSE;
+    case WebLocalizedString::OverflowMenuDownload:
+      return IDS_MEDIA_OVERFLOW_MENU_DOWNLOAD;
     case WebLocalizedString::PlaceholderForDayOfMonthField:
       return IDS_FORM_PLACEHOLDER_FOR_DAY_OF_MONTH_FIELD;
     case WebLocalizedString::PlaceholderForMonthField:
@@ -649,6 +651,9 @@ const DataResource kDataResources[] = {
     {"mediaplayerOverflowMenu",
      IDR_MEDIAPLAYER_OVERFLOW_MENU_ICON,
      ui::SCALE_FACTOR_100P},
+    {"mediaplayerDownloadIcon",
+     IDR_MEDIAPLAYER_DOWNLOAD_ICON,
+     ui::SCALE_FACTOR_100P},
     {"searchCancel", IDR_SEARCH_CANCEL, ui::SCALE_FACTOR_100P},
     {"searchCancelPressed", IDR_SEARCH_CANCEL_PRESSED, ui::SCALE_FACTOR_100P},
     {"textAreaResizeCorner", IDR_TEXTAREA_RESIZER, ui::SCALE_FACTOR_100P},