Pointer/hover media query support: platform-independent changes

content/public/common/web_preferences.h

Index: content/public/common/web_preferences.h
diff --git a/content/public/common/web_preferences.h b/content/public/common/web_preferences.h
index d7e65f772ca43a9a72aeecb6f471a5df29b2d6dd..b777fea8b249ecbe2dc71626d8f874e2c1b04453 100644
--- a/content/public/common/web_preferences.h
+++ b/content/public/common/web_preferences.h
@@ -39,6 +39,28 @@ enum V8CacheOptions {
   V8_CACHE_OPTIONS_LAST = V8_CACHE_OPTIONS_CODE
 };
 
+// Bit field values indicating what kind of pointer types are available. These
+// enum must match blink::WebSettings::PointerType enums.
+enum PointerType {
+  POINTER_TYPE_NONE = 1,

[jdduke (slow), 2014/11/11 01:17:54]

So just to be clear, are we saying there's no benefit in referencing these enums
from ui, instead duplicating theme here? I can understand duplicated copies
between blink/content, but between ui/blink/content it's getting rather
unfortunate.

[mustaq, 2014/11/11 15:41:41]

Done removing the types from here.

+  POINTER_TYPE_FIRST = POINTER_TYPE_NONE,
+  POINTER_TYPE_COARSE = 2,
+  POINTER_TYPE_FINE = 4,
+  POINTER_TYPE_LAST = POINTER_TYPE_FINE
+};
+
+// Bit field values indicating what kind of pointer types are available. These
+// enums must match blink::WebSettings::HoverType enums.
+enum HoverType {
+  HOVER_TYPE_NONE = 1,
+  HOVER_TYPE_FIRST = HOVER_TYPE_NONE,
+  // Indicates that the primary pointing system can hover, but it requires a
+  // significant action on the user’s part. e.g. hover on “long press”.
+  HOVER_TYPE_ON_DEMAND = 2,
+  HOVER_TYPE_HOVER = 4,
+  HOVER_TYPE_LAST = HOVER_TYPE_HOVER
+};
+
 // The ISO 15924 script code for undetermined script aka Common. It's the
 // default used on WebKit's side to get/set a font setting when no script is
 // specified.
@@ -123,10 +145,16 @@ struct CONTENT_EXPORT WebPreferences {
   bool css_variables_enabled;
   bool region_based_columns_enabled;
   bool touch_enabled;
+  // TODO(mustaq): Nuke when the new API is ready
   bool device_supports_touch;
+  // TODO(mustaq): Nuke when the new API is ready
   bool device_supports_mouse;
   bool touch_adjustment_enabled;
   int pointer_events_max_touch_points;
+  int available_pointer_types;
+  PointerType primary_pointer_type;
+  int available_hover_types;
+  HoverType primary_hover_type;
   bool sync_xhr_in_documents_enabled;
   bool deferred_image_decoding_enabled;
   bool should_respect_image_orientation;