Correctly integrate StoragePartition into TestingProfile.

ui/views/test/webview_test_helper.cc

Index: ui/views/test/webview_test_helper.cc
diff --git a/ui/views/test/webview_test_helper.cc b/ui/views/test/webview_test_helper.cc
index 274693739ed4d2a65c691b0d4af8a2c1d1b4630a..cf5a25c546209e246127e78b22915e1b3138e7e2 100644
--- a/ui/views/test/webview_test_helper.cc
+++ b/ui/views/test/webview_test_helper.cc
@@ -5,13 +5,12 @@
 #include "ui/views/test/webview_test_helper.h"
 
 #include "base/message_loop.h"
-#include "content/public/test/test_browser_thread.h"
 #include "content/public/test/test_content_client_initializer.h"
 #include "ui/views/controls/webview/webview.h"
 
 namespace views {
 
-WebViewTestHelper::WebViewTestHelper(base::MessageLoopForUI* ui_loop) {
+WebViewTestHelper::WebViewTestHelper() {
   test_content_client_initializer_.reset(
       new content::TestContentClientInitializer);
 
@@ -19,9 +18,6 @@ WebViewTestHelper::WebViewTestHelper(base::MessageLoopForUI* ui_loop) {
   // mock render process hosts. This ensures that we never create a 'real'
   // render view host since support for it doesn't exist in unit tests.
   test_content_client_initializer_->CreateTestRenderViewHosts();
-
-  ui_thread_.reset(
-      new content::TestBrowserThread(content::BrowserThread::UI, ui_loop));
 }
 
 WebViewTestHelper::~WebViewTestHelper() {