Remove WebTouchEvent from TouchEventManager APIs

third_party/WebKit/public/platform/WebPointerProperties.h

Index: third_party/WebKit/public/platform/WebPointerProperties.h
diff --git a/third_party/WebKit/public/platform/WebPointerProperties.h b/third_party/WebKit/public/platform/WebPointerProperties.h
index 2a453cd22fd7ae5b7a0fc193ec751f6fb9f5aa28..7963860243c63a34936277b550cbd980b4b92117 100644
--- a/third_party/WebKit/public/platform/WebPointerProperties.h
+++ b/third_party/WebKit/public/platform/WebPointerProperties.h
@@ -46,6 +46,15 @@ class WebPointerProperties {
     kLastEntry = kTouch  // Must be the last entry in the list
   };
 
+  enum class PointerAction {
+    kPointerUndefined,

[use mustaq_at_chromium.org, 2017/05/08 17:07:31]

kPointerUndefined is unused in Blink, and WebTouchPoint::State has a
"stationary" state that we need here. Other than these two, all states are 1:1
with event types, right?

From that perspective, we only need to store a Boolean here for the stationary
state.

[Navid Zolghadr, 2017/06/08 16:38:26]

I did the same idea in the new CL. But I don't add a new enum anymore. The
boolean is called stale_ and is stored in TouchEventManager.

+    kPointerUp,
+    kPointerDown,
+    kPointerMove,
+    kPointerCancel,
+    kPointerActionMax = kPointerCancel
+  };
+
   WebPointerProperties()
       : id(0),
         force(std::numeric_limits<float>::quiet_NaN()),