Extract touch handling logic from EventHandler

third_party/WebKit/Source/core/events/PointerEventFactory.h

Index: third_party/WebKit/Source/core/events/PointerEventFactory.h
diff --git a/third_party/WebKit/Source/core/events/PointerEventFactory.h b/third_party/WebKit/Source/core/events/PointerEventFactory.h
index 70d3afe8ad0b87a9f3289a53cf44af8f9415aa32..6fbb12259b878057bdf21484dbf35001f0ff2188 100644
--- a/third_party/WebKit/Source/core/events/PointerEventFactory.h
+++ b/third_party/WebKit/Source/core/events/PointerEventFactory.h
@@ -36,8 +36,8 @@ public:
 
     PointerEvent* create(const AtomicString& type,
         const PlatformTouchPoint&, PlatformEvent::Modifiers,
-        const double width, const double height,
-        const double clientX, const double clientY);
+        const FloatSize& pointRadius,
+        const FloatPoint& pagePoint);

[mustaq, 2016/04/20 15:40:01]

The name "pagePoint" seems logical to me, but please double check with bokan's
explanation to be sure:
https://sites.google.com/a/chromium.org/dev/developers/design-documents/blink...

[Navid Zolghadr, 2016/04/25 15:48:32]

It was the name of the variable we were passing. But I'll ask Bokan to confirm.

 
     PointerEvent* createPointerCancelEvent(
         const int pointerId, const WebPointerProperties::PointerType);
@@ -73,6 +73,10 @@ public:
     // Returns whether a pointer id exists and has at least one pressed button
     bool isActiveButtonsState(const int);
 
+    // Returns the id of the pointer event corresponding to the given pointer
+    // properties if exists otherwise s_invalidId
+    int getPointerEventId(const WebPointerProperties&);
+
 private:
     typedef WTF::UnsignedWithZeroKeyHashTraits<int> UnsignedHash;
     typedef struct IncomingId : public std::pair<int, int> {