Support Coalesced Touch in ppapi

third_party/WebKit/public/platform/WebCoalescedInputEvent.h

Index: third_party/WebKit/public/platform/WebCoalescedInputEvent.h
diff --git a/third_party/WebKit/public/platform/WebCoalescedInputEvent.h b/third_party/WebKit/public/platform/WebCoalescedInputEvent.h
index 966e3788128cfe97090ff848c02947984206a16b..ee7e7996550573a8b90704ea76d7ab72ff5f6870 100644
--- a/third_party/WebKit/public/platform/WebCoalescedInputEvent.h
+++ b/third_party/WebKit/public/platform/WebCoalescedInputEvent.h
@@ -20,6 +20,8 @@ class BLINK_PLATFORM_EXPORT WebCoalescedInputEvent {
   explicit WebCoalescedInputEvent(const WebInputEvent&);
   WebCoalescedInputEvent(const WebInputEvent&,
                          const std::vector<const WebInputEvent*>&);
+  // Copy constructor to deep copy the event.
+  WebCoalescedInputEvent(const WebCoalescedInputEvent&);
 
   WebInputEvent* EventPointer();
   void AddCoalescedEvent(const blink::WebInputEvent&);