Remove PlatformGestureEvent in favour of using WebGestureEvent

third_party/WebKit/public/platform/WebInputEvent.h

Index: third_party/WebKit/public/platform/WebInputEvent.h
diff --git a/third_party/WebKit/public/platform/WebInputEvent.h b/third_party/WebKit/public/platform/WebInputEvent.h
index 2133aaea5b8fd2487290e608eb4a316a31d67035..92d955b5137bf9fa9d3a5a9ccdff4abb6924e3c8 100644
--- a/third_party/WebKit/public/platform/WebInputEvent.h
+++ b/third_party/WebKit/public/platform/WebInputEvent.h
@@ -230,6 +230,12 @@ class WebInputEvent {
   Type type;
   int modifiers;
 
+  // The root frame scale.
+  float frameScale;
+
+  // The root frame translation (applied post scale).
+  WebFloatPoint frameTranslate;
+
   // Returns true if the WebInputEvent |type| is a mouse event.
   static bool isMouseEventType(int type) {
     return MouseTypeFirst <= type && type <= MouseTypeLast;
@@ -271,6 +277,7 @@ class WebInputEvent {
     size = sizeParam;
     type = Undefined;
     modifiers = 0;
+    frameScale = 1.0f;
   }
 };