Experimental viewport meta tag support for desktop

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index 8ea70fd1001363ada5b3cd1c0492c1f8660af9a5..50b9eb56cdff459cf97c8b2a458223913c65b459 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -545,11 +545,20 @@ const char kEnableUniversalAcceleratedOverflowScroll[] =
 const char kEnableUserMediaScreenCapturing[] =
     "enable-usermedia-screen-capturing";
 
-// Enables the use of the viewport meta tag, which allows
+// Enables the use of the @viewport CSS rule, which allows
 // pages to control aspects of their own layout. This also turns on touch-screen
 // pinch gestures.
 const char kEnableViewport[]                = "enable-viewport";
 
+// Enables the use of the legacy viewport meta tag. Turning this on also
+// turns on the @viewport CSS rule
+const char kEnableViewportMeta[]            = "enable-viewport-meta";
+
+// Scales the viewport in response to resizing the view. When the view is
+// resized (i.e. Rotation on Android, window resize on desktop), the viewport
+// is rescaled so that it fills the view.
+const char kScaleViewportOnResize[]         = "scale-viewport-on-resize";
+
 // Enables moving cursor by word in visual order.
 const char kEnableVisualWordMovement[]      = "enable-visual-word-movement";