Moves ash content specific tests into ash_content_unittests

ash/test/ash_test_views_delegate.cc

Index: ash/test/ash_test_views_delegate.cc
diff --git a/ash/test/ash_test_views_delegate.cc b/ash/test/ash_test_views_delegate.cc
index b11da928ecc423fb1bc104543b5986d93ab7bcee..5f3f72b97075b02ae9e8634d48f36debcbd8accb 100644
--- a/ash/test/ash_test_views_delegate.cc
+++ b/ash/test/ash_test_views_delegate.cc
@@ -5,7 +5,6 @@
 #include "ash/test/ash_test_views_delegate.h"
 
 #include "ash/shell.h"
-#include "content/public/test/web_contents_tester.h"
 
 namespace ash {
 namespace test {
@@ -14,13 +13,6 @@ AshTestViewsDelegate::AshTestViewsDelegate() {}
 
 AshTestViewsDelegate::~AshTestViewsDelegate() {}
 
-content::WebContents* AshTestViewsDelegate::CreateWebContents(
-    content::BrowserContext* browser_context,
-    content::SiteInstance* site_instance) {
-  return content::WebContentsTester::CreateTestWebContents(browser_context,
-                                                           site_instance);
-}
-
 void AshTestViewsDelegate::OnBeforeWidgetInit(
     views::Widget::InitParams* params,
     views::internal::NativeWidgetDelegate* delegate) {