Documentation for webview settings in Settings.in

Source/core/frame/Settings.in

 # Defines properties which are available on the Settings object.
 #
 # Please think carefully before adding a new Setting.  Some questions to
 # consider are:
 # - Should this be a RuntimeEnabledFeature instead? Settings are for things
 #   which we support either values of at runtime.  Features are set at renderer
 #   process startup and are never changed. Features also tend to be set to a
 #   value based on the platform or the stability of the code in question, where
 #   as settings both codepaths need to be stable.
 # - How will you ensure test coverage of all relevant values of your setting?
@@ skipping 161 matching lines @@
 
 unifiedTextCheckerEnabled initial=defaultUnifiedTextCheckerEnabled
 
 # Some apps could have a default video poster if it is not set.
 defaultVideoPosterURL type=String
 
 smartInsertDeleteEnabled initial=defaultSmartInsertDeleteEnabled
 selectTrailingWhitespaceEnabled initial=defaultSelectTrailingWhitespaceEnabled
 
 selectionIncludesAltImageText initial=false
+
+######## Settings used by Android WebView below ########
+
 useLegacyBackgroundSizeShorthandBehavior initial=false
 
 # This quirk is to maintain compatibility with Android apps built on
 # the Android SDK prior to and including version 18.
 # Presumably, this can be removed any time after 2015.
 # See http://crbug.com/282130.
 viewportMetaZeroValuesQuirk initial=false
 
 # Another Android SDK <= 18 quirk, removable 2015.
 # See http://crbug.com/295287
@@ skipping 10 matching lines @@
 # This quirk is to maintain compatibility with Android apps.
 # It will be possible to remove it once WebSettings.{get|set}UseWideViewPort
 # API function will be removed.
 # See http://crbug.com/288037.
 wideViewportQuirkEnabled initial=false
 
 # Used by the android_webview to support a horizontal height auto-sizing
 # mode.
 forceZeroLayoutHeight initial=false, invalidate=ViewportDescription
 
+mainFrameClipsContent initial=true
+
+# For android.webkit.WebSettings.setUseWideViewport()
+# http://developer.android.com/reference/android/webkit/WebSettings.html#setUseWideViewPort(boolean)
+useWideViewport initial=true, invalidate=ViewportDescription
+
+# For android.webkit.WebSettings.setLoadWithOverviewMode()
+# http://developer.android.com/reference/android/webkit/WebSettings.html#setLoadWithOverviewMode(boolean)
+loadWithOverviewMode initial=true, invalidate=ViewportDescription
+
+######## End of settings used by Android WebView ########
+
+
 # Touch based text selection and editing on desktop.
 # crbug.com/304873 tracks removal once it's been enabled on all platforms.
 touchEditingEnabled initial=false
 
 # Settings for experimental desktop pinch-zoom support (with semantics
 # optimized for large screens).  Pinch-zoom generally is implemented mainly
 # outside of blink (in the compositor) and doesn't require any settings.
 # These settings are for an experimental modification to how pinch-zoom
 # behaves.  TODO(wjmaclean): link to design document.
 # crbug.com/304869 tracks removal.
 pinchVirtualViewportEnabled initial=false
 useSolidColorScrollbars initial=false
 pinchOverlayScrollbarThickness type=int, initial=0
 
 # The rubber-band overscroll effect is implemented in Blink and is being moved
 # to the compositor thread. This will be set to true and eventually removed.
 # crbug.com/133097
 rubberBandingOnCompositorThread initial=false
 
-mainFrameClipsContent initial=true
-
-
-# Presumably used by LayoutTests?  Unclear.
-useWideViewport initial=true, invalidate=ViewportDescription
-loadWithOverviewMode initial=true, invalidate=ViewportDescription
-
-
 # Font scale factor for accessibility, applied as part of text autosizing.
 accessibilityFontScaleFactor type=double, initial=1.0, invalidate=TextAutosizing
 
 # Only set by Layout Tests.
 mediaTypeOverride type=String, initial="screen", invalidate=MediaType
 displayModeOverride type=WebDisplayMode, initial=WebDisplayModeUndefined, invalidate=MediaQuery
 
 # loadsImagesAutomatically only suppresses the network load of
 # the image URL. A cached image will still be rendered if requested.
 loadsImagesAutomatically initial=false, invalidate=ImageLoading
@@ skipping 60 matching lines @@
 inlineTextBoxAccessibilityEnabled initial=false
 
 # If true, context menu will be shown on mouse up instead of mouse down.
 # Typically enabled on Windows to match platform convention.
 showContextMenuOnMouseUp initial=false
 
 disableReadingFromCanvas initial=false
 strictMixedContentChecking initial=false
 strictPowerfulFeatureRestrictions initial=false
 logDnsPrefetchAndPreconnect initial=false