Added primary input devices setting to blink to allow media queries for hover/pointer

Source/WebCore/testing/InternalSettings.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 459 matching lines @@
     InternalSettingsGuardForSettings();
     settings()->setTimeWithoutMouseMovementBeforeHidingControls(time);
 }
 
 void InternalSettings::setUseLegacyBackgroundSizeShorthandBehavior(bool enabled, ExceptionCode& ec)
 {
     InternalSettingsGuardForSettings();
     settings()->setUseLegacyBackgroundSizeShorthandBehavior(enabled);
 }
 
+void InternalSettings::setPrimaryPointerDevices(const String& pointerDevice, ExceptionCode& ec)
+{
+    InternalSettingsGuardForSettings();
+    settings()->setPrimaryPointerDevices(PointerDeviceUnknown);
+
+    // Allow setting multiple devices by passing comma seperated list ("mouse,touch")
+    size_t ix = 0;
+    size_t comma_position;
+    do {
+      comma_position = pointerDevice.find(',', ix);

[Rick Byers, 2013/04/10 14:57:51]

Is there any other code here or in WTF somewhere for parsing a comma separated
list that you can easily share with?  This is pretty trivial, but still would be
nice not to have explicit parsing code here if there's already some in a common
place.

[bokan, 2013/04/10 16:03:29]

Done, replaced with WTFString::split

+
+      String value;
+      if(comma_position == notFound)
+        value = pointerDevice.substring(ix);
+      else
+        value = pointerDevice.substring(ix, comma_position-ix);
+
+      ix = comma_position+1;
+
+      if (value == "mouse")
+          settings()->setPrimaryPointerDevices(settings()->primaryPointerDevices() | PointerDeviceMouse);
+      else if (value == "touch")
+          settings()->setPrimaryPointerDevices(settings()->primaryPointerDevices() | PointerDeviceTouch);
+      else if (value == "none")
+          settings()->setPrimaryPointerDevices(settings()->primaryPointerDevices() | PointerDeviceNone);
+      else if (value == "unknown")
+          settings()->setPrimaryPointerDevices(settings()->primaryPointerDevices() | PointerDeviceUnknown);
+      else {
+          ec = SYNTAX_ERR;
+          return;
+      }
+    } while(comma_position != notFound && ix < pointerDevice.length());
 }
+
+}