blink: Enable the GPU trigger when viewport meta tag is not read

Source/web/WebSettingsImpl.cpp

Index: Source/web/WebSettingsImpl.cpp
diff --git a/Source/web/WebSettingsImpl.cpp b/Source/web/WebSettingsImpl.cpp
index e215266fd37e6fc9bd3431caab3b8f4aac4d8065..d7f4e5660111b152a2c82b5372b9f81e62c2683b 100644
--- a/Source/web/WebSettingsImpl.cpp
+++ b/Source/web/WebSettingsImpl.cpp
@@ -676,6 +676,11 @@ bool WebSettingsImpl::viewportEnabled() const
     return m_settings->viewportEnabled();
 }
 
+bool WebSettingsImpl::viewportMetaEnabled() const
+{
+    return m_settings->viewportMetaEnabled();
+}
+
 bool WebSettingsImpl::doubleTapToZoomEnabled() const
 {
     return m_devToolsEmulator->doubleTapToZoomEnabled();