[Presentation API] Adding a flag to disable gesture check for starting presentations

content/renderer/render_view_impl.cc

 // 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/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 1046 matching lines @@
   settings->setSpatialNavigationEnabled(prefs.spatial_navigation_enabled);
 
   settings->setSelectionIncludesAltImageText(true);
 
   settings->setV8CacheOptions(
       static_cast<WebSettings::V8CacheOptions>(prefs.v8_cache_options));
 
   settings->setImageAnimationPolicy(
       static_cast<WebSettings::ImageAnimationPolicy>(prefs.animation_policy));
 
+  settings->setPresentationRequiresUserGesture(
+      prefs.user_gesture_required_for_presentation);
+
   // Needs to happen before setIgnoreVIewportTagScaleLimits below.
   web_view->setDefaultPageScaleLimits(
       prefs.default_minimum_page_scale_factor,
       prefs.default_maximum_page_scale_factor);
 
 #if defined(OS_ANDROID)
   settings->setAllowCustomScrollbarInMainFrame(false);
   settings->setTextAutosizingEnabled(prefs.text_autosizing_enabled);
   settings->setAccessibilityFontScaleFactor(prefs.font_scale_factor);
   settings->setDeviceScaleAdjustment(prefs.device_scale_adjustment);
@@ skipping 2446 matching lines @@
   if (IsUseZoomForDSFEnabled()) {
     webview()->setZoomFactorForDeviceScaleFactor(device_scale_factor_);
   } else {
     webview()->setDeviceScaleFactor(device_scale_factor_);
   }
   webview()->settings()->setPreferCompositingToLCDTextEnabled(
       PreferCompositingToLCDText(compositor_deps_, device_scale_factor_));
 }
 
 }  // namespace content