Add overscroll edge effect animations for Android.

content/public/common/content_switches.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/public/common/content_switches.h"
 
 namespace switches {
 
 // By default, file:// URIs cannot read other file:// URIs. This is an
 // override for developers who need the old behavior for testing.
@@ skipping 731 matching lines @@
 
 // Disable user gesture requirement for media playback.
 const char kDisableGestureRequirementForMediaPlayback[] =
     "disable-gesture-requirement-for-media-playback";
 
 // The telephony region (ISO country code) to use in phone number detection.
 const char kNetworkCountryIso[] = "network-country-iso";
 
 // Set to enable compatibility with legacy WebView synchronous APIs.
 const char kEnableWebViewSynchronousAPIs[] = "enable-webview-synchronous-apis";
+
+// Enables overscroll edge effects like those found in Android views.
+const char kEnableOverscrollEdgeEffect[] = "enable-overscroll-edge-effect";
 #endif
 
 #if defined(OS_CHROMEOS)
 // Disables panel fitting (used for mirror mode).
 const char kDisablePanelFitting[]           = "disable-panel-fitting";
 #endif
 
 #if defined(OS_POSIX)
 // Causes the child processes to cleanly exit via calling exit().
 const char kChildCleanExit[]                = "child-clean-exit";
@@ skipping 36 matching lines @@
 // Enables or disables history navigation in response to horizontal overscroll.
 // Set the value to '1' to enable the feature, and set to '0' to disable.
 // Defaults to enabled.
 const char kOverscrollHistoryNavigation[] =
     "overscroll-history-navigation";
 
 // Enables 'image/webp' accept header for image requests.
 const char kEnableWebPInAcceptHeader[] = "enable-webp-in-accept-header";
 
 }  // namespace switches