mac: Prepare for -Wunused-functions.

content/child/npapi/plugin_instance_mac.mm

Index: content/child/npapi/plugin_instance_mac.mm
diff --git a/content/child/npapi/plugin_instance_mac.mm b/content/child/npapi/plugin_instance_mac.mm
index 5453f8f6a56dee70ebb71331802b7be2507c0fe4..bc8edb2295bb0149738f7e1cb03a817152832c00 100644
--- a/content/child/npapi/plugin_instance_mac.mm
+++ b/content/child/npapi/plugin_instance_mac.mm
@@ -19,56 +19,6 @@
 
 namespace content {
 
-namespace {
-
-// Returns an autoreleased NSEvent constructed from the given np_event,
-// targeting the given window.
-NSEvent* NSEventForNPCocoaEvent(NPCocoaEvent* np_event, NSWindow* window) {
-  bool mouse_down = 1;
-  switch (np_event->type) {
-    case NPCocoaEventMouseDown:
-      mouse_down = 1;
-      break;
-    case NPCocoaEventMouseUp:
-      mouse_down = 0;
-      break;
-    default:
-      // If plugins start bringing up context menus for things other than
-      // clicks, this will need more plumbing; for now just log it and proceed
-      // as if it were a mouse down.
-      NOTREACHED();
-  }
-  NSEventType event_type = NSLeftMouseDown;
-  switch (np_event->data.mouse.buttonNumber) {
-    case 0:
-      event_type = mouse_down ? NSLeftMouseDown : NSLeftMouseUp;
-      break;
-    case 1:
-      event_type = mouse_down ? NSRightMouseDown : NSRightMouseUp;
-      break;
-    default:
-      event_type = mouse_down ? NSOtherMouseDown : NSOtherMouseUp;
-      break;
-  }
-
-  NSInteger click_count = np_event->data.mouse.clickCount;
-  NSInteger modifiers = np_event->data.mouse.modifierFlags;
-  // NPCocoaEvent doesn't have a timestamp, so just use the current time.
-  NSEvent* event =
-      [NSEvent mouseEventWithType:event_type
-                         location:NSZeroPoint
-                    modifierFlags:modifiers
-                        timestamp:[[NSApp currentEvent] timestamp]
-                     windowNumber:[window windowNumber]
-                          context:[NSGraphicsContext currentContext]
-                      eventNumber:0
-                       clickCount:click_count
-                         pressure:1.0];
-  return event;
-}
-
-}  // namespace
-
 NPError PluginInstance::PopUpContextMenu(NPMenu* menu) {
   if (!currently_handled_event_)
     return NPERR_GENERIC_ERROR;