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

chrome/common/extensions/unpacker.cc

Index: chrome/common/extensions/unpacker.cc
diff --git a/chrome/common/extensions/unpacker.cc b/chrome/common/extensions/unpacker.cc
index 37b417b75ef22a280f71067c4812af6f8cac3cc7..085bc86e7c9781af98ab49bb14b7ab618020bad6 100644
--- a/chrome/common/extensions/unpacker.cc
+++ b/chrome/common/extensions/unpacker.cc
@@ -196,7 +196,8 @@ bool Unpacker::Run() {
   extension->AddInstallWarnings(warnings);
 
   // Decode any images that the browser needs to display.
-  std::set<base::FilePath> image_paths = extension->GetBrowserImages();
+  std::set<base::FilePath> image_paths =
+      extension_file_util::GetBrowserImagePaths(extension);
   for (std::set<base::FilePath>::iterator it = image_paths.begin();
        it != image_paths.end(); ++it) {
     if (!AddDecodedImage(*it))