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 92e2207aef477fa71748a9c9687e43184293000a..207bd5d1a6665f1b0ca754cab492c9928b65e332 100644
--- a/Source/web/WebSettingsImpl.cpp
+++ b/Source/web/WebSettingsImpl.cpp
@@ -647,6 +647,11 @@ bool WebSettingsImpl::viewportEnabled() const
     return m_settings->viewportEnabled();
 }
 
+bool WebSettingsImpl::viewportMetaEnabled() const
+{
+    return m_settings->viewportMetaEnabled();
+}
+
 bool WebSettingsImpl::mockGestureTapHighlightsEnabled() const
 {
     return m_settings->mockGestureTapHighlightsEnabled();