Remove IDR_STATUS_TRAY_ICON_PRESSED

chrome/browser/ui/cocoa/status_icons/status_icon_mac.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/cocoa/status_icons/status_icon_mac.h"
 
 #import <AppKit/AppKit.h>
 
 #include "base/logging.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 53 matching lines @@
 }
 
 void StatusIconMac::SetImage(const gfx::ImageSkia& image) {
   if (!image.isNull()) {
     NSImage* ns_image = gfx::SkBitmapToNSImage(*image.bitmap());
     if (ns_image)
       [item() setImage:ns_image];
   }
 }
 
-void StatusIconMac::SetPressedImage(const gfx::ImageSkia& image) {
-  if (!image.isNull()) {
-    NSImage* ns_image = gfx::SkBitmapToNSImage(*image.bitmap());
-    if (ns_image)
-      [item() setAlternateImage:ns_image];
-  }
-}
-
 void StatusIconMac::SetToolTip(const base::string16& tool_tip) {
   // If we have a status icon menu, make the tool tip part of the menu instead
   // of a pop-up tool tip when hovering the mouse over the image.
   toolTip_.reset([base::SysUTF16ToNSString(tool_tip) retain]);
   if (menu_.get()) {
     SetToolTip(nil);
     CreateMenu([menu_ model], toolTip_.get());
   } else {
     SetToolTip(toolTip_.get());
   }
@@ skipping 31 matching lines @@
                                useWithPopUpButtonCell:YES]);
     NSMenuItem* toolTipItem = [[menu_ menu] itemAtIndex:0];
     [toolTipItem setTitle:toolTip];
   }
   [item() setMenu:[menu_ menu]];
 }
 
 void StatusIconMac::SetToolTip(NSString* toolTip) {
   [item() setToolTip:toolTip];
 }