Revert 110710 - Add ChromeBrowserMainExtraParts for non main parts.

content/browser/mock_content_browser_client.cc

Index: content/browser/mock_content_browser_client.cc
diff --git a/content/browser/mock_content_browser_client.cc b/content/browser/mock_content_browser_client.cc
index 5b1c08bafc79602f4c11e07aeb09d245dd514116..b2c2dd690d2477582b3d1d1ff456c7f2b8324781 100644
--- a/content/browser/mock_content_browser_client.cc
+++ b/content/browser/mock_content_browser_client.cc
@@ -23,9 +23,9 @@ MockContentBrowserClient::MockContentBrowserClient() {
 MockContentBrowserClient::~MockContentBrowserClient() {
 }
 
-BrowserMainParts* MockContentBrowserClient::CreateBrowserMainParts(
-    const content::MainFunctionParams& parameters) {
-  return NULL;
+void MockContentBrowserClient::CreateBrowserMainParts(
+    const content::MainFunctionParams& parameters,
+    std::vector<BrowserMainParts*>* parts_list) {
 }
 
 RenderWidgetHostView* MockContentBrowserClient::CreateViewForWidget(