Pointer/hover media query support: platform-dependent changes

content/browser/renderer_host/render_view_host_impl.cc

Index: content/browser/renderer_host/render_view_host_impl.cc
diff --git a/content/browser/renderer_host/render_view_host_impl.cc b/content/browser/renderer_host/render_view_host_impl.cc
index f09be50cc455cfccd7b1edc9764228c44469c2f2..2c56bb6b60a9e058d43390d1975f8ebea4c47192 100644
--- a/content/browser/renderer_host/render_view_host_impl.cc
+++ b/content/browser/renderer_host/render_view_host_impl.cc
@@ -406,6 +406,13 @@ WebPreferences RenderViewHostImpl::ComputeWebkitPrefs(const GURL& url) {
   prefs.touch_enabled = ui::AreTouchEventsEnabled();
   prefs.device_supports_touch = prefs.touch_enabled &&
       ui::IsTouchDevicePresent();
+  prefs.available_pointer_types = ui::AvailablePointerTypes();
+  prefs.primary_pointer_type =
+      static_cast<content::PointerType>(ui::PrimaryPointerType());
+  prefs.available_hover_types = ui::AvailableHoverTypes();
+  prefs.primary_hover_type =
+      static_cast<content::HoverType>(ui::PrimaryHoverType());
+
 #if defined(OS_ANDROID)
   prefs.device_supports_mouse = false;
 #endif