Made top controls work with virtual viewport pinch-to-zoom. (Blink)

Source/web/tests/WebFrameTest.cpp

Index: Source/web/tests/WebFrameTest.cpp
diff --git a/Source/web/tests/WebFrameTest.cpp b/Source/web/tests/WebFrameTest.cpp
index 2b0965ea90adf4a8d217361aa30c9f75d9ffc256..3a0eb018b66b684a764fb3f4630d1fe4a331547b 100644
--- a/Source/web/tests/WebFrameTest.cpp
+++ b/Source/web/tests/WebFrameTest.cpp
@@ -117,6 +117,7 @@ namespace {
 
 using blink::URLTestHelpers::toKURL;
 using blink::FrameTestHelpers::runPendingTasks;
+using blink::FrameTestHelpers::UseMockScrollbarSettings;
 using namespace blink;
 
 const int touchPointPadding = 32;
@@ -238,22 +239,6 @@ protected:
     std::string m_chromeURL;
 };
 
-class UseMockScrollbarSettings {
-public:
-    UseMockScrollbarSettings()
-    {
-        Settings::setMockScrollbarsEnabled(true);
-        RuntimeEnabledFeatures::setOverlayScrollbarsEnabled(true);
-        EXPECT_TRUE(ScrollbarTheme::theme()->usesOverlayScrollbars());
-    }
-
-    ~UseMockScrollbarSettings()
-    {
-        Settings::setMockScrollbarsEnabled(false);
-        RuntimeEnabledFeatures::setOverlayScrollbarsEnabled(false);
-    }
-};
-
 TEST_F(WebFrameTest, ContentText)
 {
     registerMockedHttpURLLoad("iframes_test.html");