[polymer] Merge of master into polymer10-migration

telemetry/telemetry/internal/actions/tap.js

 // Copyright 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.
 
 'use strict';
 
 (function() {
 
   function TapGestureOptions(opt_options) {
     if (opt_options) {
       this.element_ = opt_options.element;
       this.left_position_percentage_ = opt_options.left_position_percentage;
       this.top_position_percentage_ = opt_options.top_position_percentage;
       this.duration_ms_ = opt_options.duration_ms;
       this.gesture_source_type_ = opt_options.gesture_source_type;
     } else {
       this.element_ = document.body;
       this.left_position_percentage_ = 0.5;
       this.top_position_percentage_ = 0.5;
       this.duration_ms_ = 50;
       this.gesture_source_type_ = chrome.gpuBenchmarking.DEFAULT_INPUT;
     }
   }
 
   function supportedByBrowser() {
     return !!(window.chrome &&
               chrome.gpuBenchmarking &&
-              chrome.gpuBenchmarking.tap);
+              chrome.gpuBenchmarking.tap &&
+              chrome.gpuBenchmarking.visualViewportHeight &&
+              chrome.gpuBenchmarking.visualViewportWidth);
   }
 
   function TapAction(opt_callback) {
     var self = this;
 
     this.beginMeasuringHook = function() {};
     this.endMeasuringHook = function() {};
 
     this.callback_ = opt_callback;
   }
 
   TapAction.prototype.start = function(opt_options) {
     this.options_ = new TapGestureOptions(opt_options);
     // Assign this.element_ here instead of constructor, because the constructor
     // ensures this method will be called after the document is loaded.
     this.element_ = this.options_.element_;
 
     this.beginMeasuringHook();
 
     var rect = __GestureCommon_GetBoundingVisibleRect(this.options_.element_);
     var position_left =
         rect.left + rect.width * this.options_.left_position_percentage_;
     var position_top =
         rect.top + rect.height * this.options_.top_position_percentage_;
-    if (position_left < 0 || position_left >= window.innerWidth ||
-        position_top < 0 || position_top >= window.innerHeight) {
+    if (position_left < 0 ||
+        position_left >= __GestureCommon_GetWindowWidth() ||
+        position_top < 0 ||
+        position_top >= __GestureCommon_GetWindowHeight()) {
       throw new Error('Tap position is off-screen');
     }
     chrome.gpuBenchmarking.tap(position_left, position_top,
                                this.onGestureComplete_.bind(this),
                                this.options_.duration_ms_,
                                this.options_.gesture_source_type_);
   };
 
   TapAction.prototype.onGestureComplete_ = function() {
     this.endMeasuringHook();
 
     // We're done.
     if (this.callback_)
       this.callback_();
   };
 
   window.__TapAction = TapAction;
   window.__TapAction_SupportedByBrowser = supportedByBrowser;
 })();