Consolidate manifest handler registration.

chrome/browser/themes/browser_theme_pack_unittest.cc

Index: chrome/browser/themes/browser_theme_pack_unittest.cc
diff --git a/chrome/browser/themes/browser_theme_pack_unittest.cc b/chrome/browser/themes/browser_theme_pack_unittest.cc
index 3863be3c79583034dc84a4d9b9f1debebd9e8582..ae7fcbfb436e7b175494b8beef4e85538797fbf1 100644
--- a/chrome/browser/themes/browser_theme_pack_unittest.cc
+++ b/chrome/browser/themes/browser_theme_pack_unittest.cc
@@ -13,8 +13,6 @@
 #include "base/values.h"
 #include "chrome/browser/themes/theme_properties.h"
 #include "chrome/common/chrome_paths.h"
-#include "chrome/common/extensions/manifest_handler.h"
-#include "chrome/common/extensions/manifest_handlers/theme_handler.h"
 #include "content/public/test/test_browser_thread.h"
 #include "grit/theme_resources.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -32,15 +30,6 @@ class BrowserThemePackTest : public ::testing::Test {
         theme_pack_(new BrowserThemePack) {
   }
 
-  virtual void SetUp() OVERRIDE {
-    testing::Test::SetUp();
-    (new extensions::ThemeHandler)->Register();
-  }
-
-  virtual void TearDown() OVERRIDE {
-    extensions::ManifestHandler::ClearRegistryForTesting();
-  }
-
   // Transformation for link underline colors.
   SkColor BuildThirdOpacity(SkColor color_link) {
     return SkColorSetA(color_link, SkColorGetA(color_link) / 3);