Always reset touch action at the beginning of a new gesture sequence

content/common/input/web_input_event_traits.cc

Index: content/common/input/web_input_event_traits.cc
diff --git a/content/common/input/web_input_event_traits.cc b/content/common/input/web_input_event_traits.cc
index 3ef17e7ac718de655d96a226cb265fd8feed1dc1..0326bb0a574e35d6b2bf14ea7c02dcf62c1aa2cc 100644
--- a/content/common/input/web_input_event_traits.cc
+++ b/content/common/input/web_input_event_traits.cc
@@ -339,4 +339,16 @@ bool WebInputEventTraits::IgnoresAckDisposition(
   return false;
 }
 
+bool WebInputEventTraits::IsNewTouchSequence(const WebTouchEvent& event) {
+  if (event.type != WebInputEvent::TouchStart)
+    return false;
+  if (!event.touchesLength)

[Rick Byers, 2014/02/18 22:01:15]

This case should never happen, right?  Maybe DHCECK (and leave the return false
in if you're worried about it)?

[tdresser, 2014/02/20 18:37:56]

Done.

+    return false;
+  for (size_t i = 0; i < event.touchesLength; i++) {
+    if (event.touches[i].state != blink::WebTouchPoint::StatePressed)
+      return false;
+  }
+  return true;
+}
+
 }  // namespace content