Revert of Explicitly suppress scrolling for wheel events that will trigger zooming

content/common/input/web_input_event_traits_unittest.cc

Index: content/common/input/web_input_event_traits_unittest.cc
diff --git a/content/common/input/web_input_event_traits_unittest.cc b/content/common/input/web_input_event_traits_unittest.cc
index d4bbeba8a70b0dbf949559c86087ac74ee03186a..7a7cb7ff8b3e878eec275c8445494fbb8a6aefa4 100644
--- a/content/common/input/web_input_event_traits_unittest.cc
+++ b/content/common/input/web_input_event_traits_unittest.cc
@@ -49,17 +49,6 @@
     event.type = type;
     event.x = x;
     event.y = y;
-    return event;
-  }
-
-  static WebMouseWheelEvent CreateMouseWheel(float deltaX,
-                                             float deltaY,
-                                             bool canScroll) {
-    WebMouseWheelEvent event;
-    event.type = WebInputEvent::MouseWheel;
-    event.deltaX = deltaX;
-    event.deltaY = deltaY;
-    event.canScroll = canScroll;
     return event;
   }
 };
@@ -173,31 +162,6 @@
   EXPECT_EQ(numeric_limits<float>::max(), pinch1.data.pinchUpdate.scale);
 }
 
-TEST_F(WebInputEventTraitsTest, WebMouseWheelEventCoalescing) {
-  WebMouseWheelEvent mouseWheel0 =
-      CreateMouseWheel(1, 1, true);
-  WebMouseWheelEvent mouseWheel1 =
-      CreateMouseWheel(2, 2, true);
-
-  // WebMouseWheelEvent objects with same values except different deltaX and
-  // deltaY should coalesce.
-  EXPECT_TRUE(WebInputEventTraits::CanCoalesce(mouseWheel0, mouseWheel1));
-
-  mouseWheel0 = CreateMouseWheel(1, 1, true);
-  mouseWheel1 = CreateMouseWheel(1, 1, false);
-
-  // WebMouseWheelEvent objects with different canScroll values should not
-  // coalesce.
-  EXPECT_FALSE(WebInputEventTraits::CanCoalesce(mouseWheel0, mouseWheel1));
-
-  // WebMouseWheelEvent objects with different modifiers should not coalesce.
-  mouseWheel0 = CreateMouseWheel(1, 1, true);
-  mouseWheel1 = CreateMouseWheel(1, 1, true);
-  mouseWheel0.modifiers = blink::WebInputEvent::ControlKey;
-  mouseWheel1.modifiers = blink::WebInputEvent::ShiftKey;
-  EXPECT_FALSE(WebInputEventTraits::CanCoalesce(mouseWheel0, mouseWheel1));
-}
-
 // Very basic smoke test to ensure stringification doesn't explode.
 TEST_F(WebInputEventTraitsTest, ToString) {
   WebKeyboardEvent key;