Add warning icon to media throttle info bar to make it consistent with others

chrome/browser/android/media/media_throttle_infobar_delegate.cc

Index: chrome/browser/android/media/media_throttle_infobar_delegate.cc
diff --git a/chrome/browser/android/media/media_throttle_infobar_delegate.cc b/chrome/browser/android/media/media_throttle_infobar_delegate.cc
index 45f8db360f28e2ef8d7b5affadf88a307d2f5ea7..ccafe900047d4463abae6c5cab83ce6df8a0245a 100644
--- a/chrome/browser/android/media/media_throttle_infobar_delegate.cc
+++ b/chrome/browser/android/media/media_throttle_infobar_delegate.cc
@@ -52,6 +52,10 @@ base::string16 MediaThrottleInfoBarDelegate::GetMessageText() const {
   return l10n_util::GetStringUTF16(IDS_MEDIA_THROTTLE_INFOBAR_TEXT);
 }
 
+int MediaThrottleInfoBarDelegate::GetIconId() const {
+  return IDR_INFOBAR_WARNING;
+}
+
 base::string16 MediaThrottleInfoBarDelegate::GetButtonLabel(
     InfoBarButton button) const {
   return l10n_util::GetStringUTF16((button == BUTTON_OK) ?