Suppress touchscreen tap immediately after a GestureFlingCancel

content/browser/renderer_host/touchscreen_tap_suppression_controller.cc

Index: content/browser/renderer_host/touchscreen_tap_suppression_controller.cc
diff --git a/content/browser/renderer_host/touchscreen_tap_suppression_controller.cc b/content/browser/renderer_host/touchscreen_tap_suppression_controller.cc
new file mode 100644
index 0000000000000000000000000000000000000000..1601ad5bc2d864b7e99dab8930fe697ac91376c7
--- /dev/null
+++ b/content/browser/renderer_host/touchscreen_tap_suppression_controller.cc
@@ -0,0 +1,46 @@
+// Copyright (c) 2013 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/touchscreen_tap_suppression_controller.h"
+
+#include <utility>
+
+// The default implementation of the TouchscreenTapSuppressionController does
+// not suppress taps. Tap suppression is needed only on CrOS.
+
+namespace content {
+
+TouchscreenTapSuppressionController::TouchscreenTapSuppressionController(
+    RenderWidgetHostImpl* /*rwhv*/,
+    GestureEventFilter* /*gef*/)
+    : render_widget_host_(NULL),
+      gesture_event_filter_(NULL) {
+}
+
+TouchscreenTapSuppressionController::~TouchscreenTapSuppressionController() {}
+
+void TouchscreenTapSuppressionController::GestureFlingCancel(
+    double /*cancel_time*/) {
+}
+
+void TouchscreenTapSuppressionController::GestureFlingCancelAck(
+    bool /*processed*/) {
+}
+
+bool TouchscreenTapSuppressionController::ShouldDeferGestureTapDown(
+    const WebKit::WebGestureEvent& event) {
+  return false;
+}
+
+bool TouchscreenTapSuppressionController::ShouldSuppressGestureTap() {
+  return false;
+}
+
+bool TouchscreenTapSuppressionController::ShouldSuppressGestureTapCancel() {
+  return false;
+}
+
+void TouchscreenTapSuppressionController::GestureTapDownTimerExpired() {}
+
+}  // namespace content