Support tap_count in ui::GestureProvider.

ui/aura/gestures/gesture_recognizer_unittest.cc

Index: ui/aura/gestures/gesture_recognizer_unittest.cc
diff --git a/ui/aura/gestures/gesture_recognizer_unittest.cc b/ui/aura/gestures/gesture_recognizer_unittest.cc
index 39be275e273145507341f5b5ddf3dd3d2fa407b0..15a6fcad86c0ddfdc8b303d43405752bc42de7c5 100644
--- a/ui/aura/gestures/gesture_recognizer_unittest.cc
+++ b/ui/aura/gestures/gesture_recognizer_unittest.cc
@@ -3366,11 +3366,6 @@ TEST_P(GestureRecognizerTest, GestureEventScrollTouchMovePartialConsumed) {
 
 // Check that appropriate touch events generate double tap gesture events.
 TEST_P(GestureRecognizerTest, GestureEventDoubleTap) {
-  // TODO(tdresser): enable this test with unified GR once double / triple tap
-  // gestures work. See crbug.com/357270.
-  if (UsingUnifiedGR())
-    return;
-
   scoped_ptr<GestureEventConsumeDelegate> delegate(
       new GestureEventConsumeDelegate());
   const int kWindowWidth = 123;
@@ -3412,11 +3407,6 @@ TEST_P(GestureRecognizerTest, GestureEventDoubleTap) {
 
 // Check that appropriate touch events generate triple tap gesture events.
 TEST_P(GestureRecognizerTest, GestureEventTripleTap) {
-  // TODO(tdresser): enable this test with unified GR once double / triple tap
-  // gestures work. See crbug.com/357270.
-  if (UsingUnifiedGR())
-    return;
-
   scoped_ptr<GestureEventConsumeDelegate> delegate(
       new GestureEventConsumeDelegate());
   const int kWindowWidth = 123;
@@ -4267,8 +4257,6 @@ TEST_P(GestureRecognizerTest, GestureEventFlagsPassedFromTouchEvent) {
   EXPECT_NE(default_flags, delegate->flags());
 }
 
-// TODO - re-enable these tests once memory management issues have been sorted
-// out. See crbug.com/371990.
 INSTANTIATE_TEST_CASE_P(GestureRecognizer,
                         GestureRecognizerTest,
                         ::testing::Bool());