Remove meta viewport and @viewport CSS rules.

sky/engine/core/frame/Settings.in

Index: sky/engine/core/frame/Settings.in
diff --git a/sky/engine/core/frame/Settings.in b/sky/engine/core/frame/Settings.in
index 472bd6aae5d7ecc1c902fdacce4af61eef623116..ccfdf81b2b0a391f61a5b3881e6ad7a9a03a30ae 100644
--- a/sky/engine/core/frame/Settings.in
+++ b/sky/engine/core/frame/Settings.in
@@ -140,7 +140,7 @@ selectionIncludesAltImageText initial=false
 
 # Used by the android_webview to support a horizontal height auto-sizing
 # mode.
-forceZeroLayoutHeight initial=false, invalidate=ViewportDescription
+forceZeroLayoutHeight initial=false
 
 # Touch based text selection and editing on desktop.
 # crbug.com/304873 tracks removal once it's been enabled on all platforms.
@@ -150,16 +150,13 @@ useSolidColorScrollbars initial=true
 
 mainFrameClipsContent initial=true
 
-
 # Presumably used by tests?  Unclear.
-useWideViewport initial=true, invalidate=ViewportDescription
-loadWithOverviewMode initial=true, invalidate=ViewportDescription
-
+useWideViewport initial=true
+loadWithOverviewMode initial=true
 
 # Font scale factor for accessibility, applied as part of text autosizing.
 accessibilityFontScaleFactor type=double, initial=1.0
 
-
 # Only set by Layout Tests.
 mediaTypeOverride type=String, initial="screen", invalidate=MediaType
 
@@ -168,9 +165,6 @@ mediaTypeOverride type=String, initial="screen", invalidate=MediaType
 loadsImagesAutomatically initial=false, invalidate=ImageLoading
 imagesEnabled initial=true, invalidate=ImageLoading
 
-viewportEnabled initial=false, invalidate=ViewportDescription
-viewportMetaEnabled initial=false
-
 # Compensates for poor text legibility on mobile devices. This value is
 # multiplied by the font scale factor when performing text autosizing of
 # websites that do not set an explicit viewport description.