Add enabling/disabling of NetworkInformation API via WebRuntimeFeatures. This...

Add enabling/disabling of NetworkInformation API via WebRuntimeFeatures.  This lets us restrict the API to the platforms that are fully implemented while we develop the others.

See https://codereview.chromium.org/424823002/ for the Chromium code that uses this.

BUG=368358

Review URL: https://codereview.chromium.org/422933003

git-svn-id: svn://svn.chromium.org/blink/trunk@179147 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/web/WebRuntimeFeatures.cpp

@@ -170,6 +170,11 @@ void WebRuntimeFeatures::enableNavigationTransitions(bool enable)
     RuntimeEnabledFeatures::setNavigationTransitionsEnabled(enable);
 }
 
+void WebRuntimeFeatures::enableNetworkInformation(bool enable)
+{
+    RuntimeEnabledFeatures::setNetworkInformationEnabled(enable);
+}
+
 void WebRuntimeFeatures::enableOrientationEvent(bool enable)
 {
     RuntimeEnabledFeatures::setOrientationEventEnabled(enable);

third_party/WebKit/public/web/WebRuntimeFeatures.h

@@ -84,6 +84,8 @@ public:
 
     BLINK_EXPORT static void enableNavigationTransitions(bool);
 
+    BLINK_EXPORT static void enableNetworkInformation(bool);
+
     BLINK_EXPORT static void enableOrientationEvent(bool);
 
     BLINK_EXPORT static void enablePagePopup(bool);