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

chrome/common/extensions/extension_file_util.h

Index: chrome/common/extensions/extension_file_util.h
diff --git a/chrome/common/extensions/extension_file_util.h b/chrome/common/extensions/extension_file_util.h
index 4ff47cc7b0b274517cc5f7d402c7db7e59ea6e17..b7ae26237f91e968541e1a39736b2ee9f35b2df1 100644
--- a/chrome/common/extensions/extension_file_util.h
+++ b/chrome/common/extensions/extension_file_util.h
@@ -82,8 +82,16 @@ bool ValidateExtension(const extensions::Extension* extension,
                        std::string* error,
                        std::vector<extensions::InstallWarning>* warnings);
 
+// Returns a list of paths (relative to the extension dir) for images that
+// the browser might load (like themes and page action icons) for the given
+// extension.
+std::set<base::FilePath> GetBrowserImagePaths(
+    const extensions::Extension* extension);
+
+
 // Returns a list of files that contain private keys inside |extension_dir|.
-std::vector<base::FilePath> FindPrivateKeyFiles(const base::FilePath& extension_dir);
+std::vector<base::FilePath> FindPrivateKeyFiles(
+    const base::FilePath& extension_dir);
 
 // Cleans up the extension install directory. It can end up with garbage in it
 // if extensions can't initially be removed when they are uninstalled (eg if a