Revert of Remove invert viewport scroll order setting from Blink

third_party/WebKit/Source/web/WebSettingsImpl.cpp

Index: third_party/WebKit/Source/web/WebSettingsImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebSettingsImpl.cpp b/third_party/WebKit/Source/web/WebSettingsImpl.cpp
index f68411e85cea843ca7f4abb73ebdcd297d57b86f..6df9dadb3be256efe87e5379fa705f0c8ad9aaa8 100644
--- a/third_party/WebKit/Source/web/WebSettingsImpl.cpp
+++ b/third_party/WebKit/Source/web/WebSettingsImpl.cpp
@@ -185,6 +185,11 @@
     m_settings->setInlineTextBoxAccessibilityEnabled(enabled);
 }
 
+void WebSettingsImpl::setInvertViewportScrollOrder(bool enabled)
+{
+    m_settings->setInvertViewportScrollOrder(enabled);
+}
+
 void WebSettingsImpl::setDeviceScaleAdjustment(float deviceScaleAdjustment)
 {
     m_devToolsEmulator->setDeviceScaleAdjustment(deviceScaleAdjustment);