[Android WebView] Treat zero values in viewport arguments specially

Source/web/WebSettingsImpl.cpp

Index: Source/web/WebSettingsImpl.cpp
diff --git a/Source/web/WebSettingsImpl.cpp b/Source/web/WebSettingsImpl.cpp
index fb74fc310115407cbcd6fe1eeeac2240a8e5683e..e07a78af0bc3787e741a6f82da224bc61ea0cfec 100644
--- a/Source/web/WebSettingsImpl.cpp
+++ b/Source/web/WebSettingsImpl.cpp
@@ -56,7 +56,7 @@ WebSettingsImpl::WebSettingsImpl(Settings* settings)
     , m_deferredImageDecodingEnabled(false)
     , m_doubleTapToZoomEnabled(false)
     , m_supportDeprecatedTargetDensityDPI(false)
-    , m_viewportMetaLayoutSizeQuirk(false)
+    , m_viewportMetaLayoutSizeAndZeroValuesQuirk(false)
     , m_pinchOverlayScrollbarThickness(0)
 {
     ASSERT(settings);
@@ -182,9 +182,9 @@ void WebSettingsImpl::setSupportDeprecatedTargetDensityDPI(bool supportDeprecate
     m_supportDeprecatedTargetDensityDPI = supportDeprecatedTargetDensityDPI;
 }
 
-void WebSettingsImpl::setViewportMetaLayoutSizeQuirk(bool viewportMetaLayoutSizeQuirk)
+void WebSettingsImpl::setViewportMetaLayoutSizeAndZeroValuesQuirk(bool viewportMetaLayoutSizeAndZeroValuesQuirk)
 {
-    m_viewportMetaLayoutSizeQuirk = viewportMetaLayoutSizeQuirk;
+    m_viewportMetaLayoutSizeAndZeroValuesQuirk = viewportMetaLayoutSizeAndZeroValuesQuirk;
 }
 
 void WebSettingsImpl::setSupportsMultipleWindows(bool supportsMultipleWindows)