Use platform slop/timeout values for selection handle tap detection

content/browser/renderer_host/input/touch_selection_controller.cc

 // Copyright 2014 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/input/touch_selection_controller.h"
 
 #include "base/auto_reset.h"
 #include "base/logging.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 
@@ skipping 11 matching lines @@
     case cc::SELECTION_BOUND_EMPTY:
       return TOUCH_HANDLE_ORIENTATION_UNDEFINED;
   }
   NOTREACHED() << "Invalid selection bound type: " << type;
   return TOUCH_HANDLE_ORIENTATION_UNDEFINED;
 }
 
 }  // namespace
 
 TouchSelectionController::TouchSelectionController(
-    TouchSelectionControllerClient* client)
+    TouchSelectionControllerClient* client,
+    base::TimeDelta tap_timeout,
+    float tap_slop)
     : client_(client),
+      tap_timeout_(tap_timeout),
+      tap_slop_(tap_slop),
       response_pending_input_event_(INPUT_EVENT_TYPE_NONE),
       start_orientation_(TOUCH_HANDLE_ORIENTATION_UNDEFINED),
       end_orientation_(TOUCH_HANDLE_ORIENTATION_UNDEFINED),
       is_insertion_active_(false),
       activate_insertion_automatically_(false),
       is_selection_active_(false),
       activate_selection_automatically_(false),
       selection_empty_(false),
       selection_editable_(false),
       temporarily_hidden_(false) {
@@ skipping 197 matching lines @@
 }
 
 void TouchSelectionController::SetNeedsAnimate() {
   client_->SetNeedsAnimate();
 }
 
 scoped_ptr<TouchHandleDrawable> TouchSelectionController::CreateDrawable() {
   return client_->CreateDrawable();
 }
 
+base::TimeDelta TouchSelectionController::GetTapTimeout() const {
+  return tap_timeout_;
+}
+
+float TouchSelectionController::GetTapSlop() const {
+  return tap_slop_;
+}
+
 void TouchSelectionController::ShowInsertionHandleAutomatically() {
   if (activate_insertion_automatically_)
     return;
   activate_insertion_automatically_ = true;
   ResetCachedValuesIfInactive();
 }
 
 void TouchSelectionController::ShowSelectionHandlesAutomatically() {
   if (activate_selection_automatically_)
     return;
@@ skipping 135 matching lines @@
 }
 
 TouchHandle::AnimationStyle TouchSelectionController::GetAnimationStyle(
     bool was_active) const {
   return was_active && client_->SupportsAnimation()
              ? TouchHandle::ANIMATION_SMOOTH
              : TouchHandle::ANIMATION_NONE;
 }
 
 }  // namespace content