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

Source/WebCore/testing/InternalSettings.cpp

Index: Source/WebCore/testing/InternalSettings.cpp
diff --git a/Source/WebCore/testing/InternalSettings.cpp b/Source/WebCore/testing/InternalSettings.cpp
index 2239e10b5a0a530da59d7612815d88ae529dc56f..9ab62ea9a0aab0f30ca16939881fe1115533b976 100644
--- a/Source/WebCore/testing/InternalSettings.cpp
+++ b/Source/WebCore/testing/InternalSettings.cpp
@@ -477,4 +477,38 @@ void InternalSettings::setUseLegacyBackgroundSizeShorthandBehavior(bool enabled,
     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());
+}
+
 }