Added item to Show/Hide video controls in the context menu for <video>.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index ec11f3adcf33eb75d5dd715dbc954fbf1a0439ff..1c7e9d75276f4fa31390d959930ed62c0d13c5ea 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -425,6 +425,9 @@ each locale. -->
         <message name="IDS_CONTENT_CONTEXT_UNMUTE" desc="The name of the Unmute command for audio and video playback in the content area context menu">
           Un&amp;mute
         </message>
+        <message name="IDS_CONTENT_CONTEXT_CONTROLS" desc="The name of the Show Controls command for audio and video playback in the content area context menu">
+          Show &amp;Controls
+        </message>
 
         <message name="IDS_CONTENT_CONTEXT_FULLSCREEN" desc="The name of the Fullscreen command for the video element in the content area context menu">
           &amp;Full Screen
@@ -613,6 +616,9 @@ each locale. -->
         <message name="IDS_CONTENT_CONTEXT_UNMUTE" desc="In Title Case: The name of the Unmute command for audio and video playback in the content area context menu">
           Un&amp;mute
         </message>
+        <message name="IDS_CONTENT_CONTEXT_CONTROLS" desc="In Title Case: The name of the Show Controls command for audio and video playback in the content area context menu">
+          Show &amp;Controls
+        </message>
 
         <message name="IDS_CONTENT_CONTEXT_FULLSCREEN" desc="In Title Case: The name of the Fullscreen command for the video element in the content area context menu">
           &amp;Full Screen