Use a single flag for enabling experimental WebKit features.

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 d6550cd33701b5cacd03c36ac17ee344361b2687..6f1ca1ce658b338e7b67058776590afaa76b59cf 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -254,18 +254,9 @@ const char kEnableAccessibilityLogging[]    = "enable-accessibility-logging";
 const char kEnableCompositingForFixedPosition[] =
      "enable-fixed-position-compositing";
 
-// Enables CSS3 exclusions
-const char kEnableCssExclusions[]           = "enable-css-exclusions";
-
-// Enables CSS3 regions
-const char kEnableCssRegions[]              = "enable-css-regions";
-
 // Enables CSS3 custom filters
 const char kEnableCssShaders[]              = "enable-css-shaders";
 
-// Enables CSS variables
-const char kEnableCssVariables[]            = "enable-css-variables";
-
 // Enables device motion events.
 const char kEnableDeviceMotion[]            = "enable-device-motion";
 
@@ -273,6 +264,10 @@ const char kEnableDeviceMotion[]            = "enable-device-motion";
 // incomplete and this flag is used for development and testing.
 const char kEnableEncryptedMedia[]          = "enable-encrypted-media";
 
+// Enables WebKit features that are in development.
+const char kEnableExperimentalWebKitFeatures[] =
+    "enable-experimental-webkit-features";
+
 // Enables the fastback page cache.
 const char kEnableFastback[]                = "enable-fastback";
 
@@ -344,12 +339,6 @@ const char kEnableSandboxLogging[]          = "enable-sandbox-logging";
 // Enable the seccomp sandbox (Linux only)
 const char kEnableSeccompSandbox[]          = "enable-seccomp-sandbox";
 
-// Enable shadow DOM API
-const char kEnableShadowDOM[]          = "enable-shadow-dom";
-
-// Enable <style scoped>
-const char kEnableStyleScoped[]             = "enable-style-scoped";
-
 // On platforms that support it, enables smooth scroll animation.
 const char kEnableSmoothScrolling[]         = "enable-smooth-scrolling";