Move ThemeHandler from c/c/e/api; move GetBrowserImages() out of Extension class

chrome/browser/themes/browser_theme_pack.h

 // 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.
 
 #ifndef CHROME_BROWSER_THEMES_BROWSER_THEME_PACK_H_
 #define CHROME_BROWSER_THEMES_BROWSER_THEME_PACK_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 107 matching lines @@
   // Default. Everything is empty.
   BrowserThemePack();
 
   virtual ~BrowserThemePack();
 
   // Builds a header ready to write to disk.
   void BuildHeader(const extensions::Extension* extension);
 
   // Transforms the JSON tint values into their final versions in the |tints_|
   // array.
-  void BuildTintsFromJSON(base::DictionaryValue* tints_value);
+  void BuildTintsFromJSON(const base::DictionaryValue* tints_value);
 
   // Transforms the JSON color values into their final versions in the
   // |colors_| array and also fills in unspecified colors based on tint values.
-  void BuildColorsFromJSON(base::DictionaryValue* color_value);
+  void BuildColorsFromJSON(const base::DictionaryValue* color_value);
 
   // Implementation details of BuildColorsFromJSON().
-  void ReadColorsFromJSON(base::DictionaryValue* colors_value,
+  void ReadColorsFromJSON(const base::DictionaryValue* colors_value,
                           std::map<int, SkColor>* temp_colors);
   void GenerateMissingColors(std::map<int, SkColor>* temp_colors);
 
   // Transforms the JSON display properties into |display_properties_|.
-  void BuildDisplayPropertiesFromJSON(base::DictionaryValue* display_value);
+  void BuildDisplayPropertiesFromJSON(
+      const base::DictionaryValue* display_value);
 
   // Parses the image names out of an extension.
-  void ParseImageNamesFromJSON(base::DictionaryValue* images_value,
+  void ParseImageNamesFromJSON(const base::DictionaryValue* images_value,
                                const base::FilePath& images_path,
                                FilePathMap* file_paths) const;
 
   // Creates the data for |source_images_| from |file_paths|.
   void BuildSourceImagesArray(const FilePathMap& file_paths);
 
   // Loads the unmodified images packed in the extension to SkBitmaps. Returns
   // true if all images loaded.
   bool LoadRawBitmapsTo(const FilePathMap& file_paths,
                         ImageCache* image_cache);
@@ skipping 108 matching lines @@
   // Cache of images created in BuildFromExtension(). Once the theme pack is
   // created, this cache should only be accessed on the file thread. There
   // should be no IDs in |image_memory_| that are in |images_on_file_thread_|
   // or vice versa.
   ImageCache images_on_file_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserThemePack);
 };
 
 #endif  // CHROME_BROWSER_THEMES_BROWSER_THEME_PACK_H_