Moves ash content specific tests into ash_content_unittests

chrome/test/base/browser_with_test_window_test.h

Index: chrome/test/base/browser_with_test_window_test.h
diff --git a/chrome/test/base/browser_with_test_window_test.h b/chrome/test/base/browser_with_test_window_test.h
index 9792495e99f165498aea86c892746e659e891da7..e2007abb1c9967ab5377a13cd33eb2b508265a26 100644
--- a/chrome/test/base/browser_with_test_window_test.h
+++ b/chrome/test/base/browser_with_test_window_test.h
@@ -31,6 +31,7 @@ class GURL;
 #if defined(OS_CHROMEOS)
 namespace ash {
 namespace test {
+class AshTestEnvironment;
 class AshTestHelper;
 }
 }
@@ -171,6 +172,7 @@ class BrowserWithTestWindowTest : public testing::Test {
   content::RenderViewHostTestEnabler rvh_test_enabler_;
 
 #if defined(OS_CHROMEOS)
+  std::unique_ptr<ash::test::AshTestEnvironment> ash_test_environment_;
   std::unique_ptr<ash::test::AshTestHelper> ash_test_helper_;
 #elif defined(TOOLKIT_VIEWS)
   std::unique_ptr<views::ScopedViewsTestHelper> views_test_helper_;