Suppress touchscreen tap immediately after a GestureFlingCancel

content/browser/renderer_host/touchpad_tap_suppression_controller.cc

Index: content/browser/renderer_host/touchpad_tap_suppression_controller.cc
diff --git a/content/browser/renderer_host/touchpad_tap_suppression_controller.cc b/content/browser/renderer_host/touchpad_tap_suppression_controller.cc
new file mode 100644
index 0000000000000000000000000000000000000000..bb6671f765ddb69f548f967ee7ae80f213cafedd
--- /dev/null
+++ b/content/browser/renderer_host/touchpad_tap_suppression_controller.cc
@@ -0,0 +1,38 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/browser/renderer_host/touchpad_tap_suppression_controller.h"
+
+#include <utility>
+
+// The default implementation of the TouchpadTapSuppressionController does not
+// suppress taps. Tap suppression is needed only on CrOS.
+
+namespace content {
+
+TouchpadTapSuppressionController::TouchpadTapSuppressionController(
+    RenderWidgetHostImpl* /*rwhv*/)
+    : render_widget_host_(NULL) {
+}
+
+TouchpadTapSuppressionController::~TouchpadTapSuppressionController() {}
+
+bool TouchpadTapSuppressionController::ShouldSuppressMouseUp() { return false; }
+
+bool TouchpadTapSuppressionController::ShouldDeferMouseDown(
+    const WebKit::WebMouseEvent& event) {
+  return false;
+}
+
+void TouchpadTapSuppressionController::GestureFlingCancelAck(
+    bool /*processed*/) {
+}
+
+void TouchpadTapSuppressionController::GestureFlingCancel(
+    double /*cancel_time*/) {
+}
+
+void TouchpadTapSuppressionController::MouseDownTimerExpired() {}
+
+}  // namespace content