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

chrome/common/extensions/extension.h

Index: chrome/common/extensions/extension.h
diff --git a/chrome/common/extensions/extension.h b/chrome/common/extensions/extension.h
index 4774eadea1270c5a888d6566260221ccf2743b95..d24e2ab57a7cb0736a31a3868024b179c304877c 100644
--- a/chrome/common/extensions/extension.h
+++ b/chrome/common/extensions/extension.h
@@ -309,10 +309,6 @@ class Extension : public base::RefCountedThreadSafe<Extension> {
   // Whether context menu should be shown for page and browser actions.
   bool ShowConfigureContextMenus() const;
 
-  // Returns a list of paths (relative to the extension dir) for images that
-  // the browser might load (like themes and page action icons).
-  std::set<base::FilePath> GetBrowserImages() const;
-
   // Gets the fully resolved absolute launch URL.
   GURL GetFullLaunchURL() const;