Coverity: Pass parameters by reference.

chrome/browser/ui/views/extensions/extension_installed_bubble.cc

 // Copyright (c) 2011 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/views/extensions/extension_installed_bubble.h"
 
 #include <algorithm>
 
 #include "base/i18n/rtl.h"
 #include "base/message_loop.h"
@@ skipping 217 matching lines @@
   views::Label* heading_;
   views::Label* info_;
   views::Label* manage_;
   views::ImageButton* close_button_;
 
   DISALLOW_COPY_AND_ASSIGN(InstalledBubbleContent);
 };
 
 void ExtensionInstalledBubble::Show(const Extension* extension,
                                     Browser *browser,
-                                    SkBitmap icon) {
+                                    const SkBitmap& icon) {
   new ExtensionInstalledBubble(extension, browser, icon);
 }
 
 ExtensionInstalledBubble::ExtensionInstalledBubble(const Extension* extension,
                                                    Browser *browser,
-                                                   SkBitmap icon)
+                                                   const SkBitmap& icon)
     : extension_(extension),
       browser_(browser),
       icon_(icon),
       animation_wait_retries_(0) {
   AddRef();  // Balanced in InfoBubbleClosing.
 
   if (!extension_->omnibox_keyword().empty()) {
     type_ = OMNIBOX_KEYWORD;
   } else if (extension_->browser_action()) {
     type_ = BROWSER_ACTION;
@@ skipping 118 matching lines @@
   Release();  // Balanced in ctor.
 }
 
 bool ExtensionInstalledBubble::CloseOnEscape() {
   return true;
 }
 
 bool ExtensionInstalledBubble::FadeInOnShow() {
   return true;
 }