Move extension_icon_set.{h,cc} to //extensions

chrome/common/extensions/manifest_handlers/icons_handler.h

 // Copyright (c) 2013 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.
 
 #ifndef CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLERS_ICONS_HANDLER_H_
 #define CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLERS_ICONS_HANDLER_H_
 
 #include <string>
 
-#include "chrome/common/extensions/extension_icon_set.h"
 #include "extensions/common/extension.h"
+#include "extensions/common/extension_icon_set.h"
 #include "extensions/common/extension_resource.h"
 #include "extensions/common/manifest_handler.h"
 
 namespace extensions {
 
 struct IconsInfo : public Extension::ManifestData {
   // Max size (both dimensions) for browser and page actions.
   static const int kPageActionIconMaxSize;
   static const int kBrowserActionIconMaxSize;
 
@@ skipping 29 matching lines @@
                         std::string* error,
                         std::vector<InstallWarning>* warnings) const OVERRIDE;
 
  private:
   virtual const std::vector<std::string> Keys() const OVERRIDE;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLERS_ICONS_HANDLER_H_