Don't send touch move to renderer while scrolling

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 696 matching lines @@
 // sending them to the renderer.
 const char kTapDownDeferralTimeMs[]         = "tap-down-deferral-time";
 
 // Runs the security test for the renderer sandbox.
 const char kTestSandbox[]                   = "test-sandbox";
 
 // Allows for forcing socket connections to http/https to use fixed ports.
 const char kTestingFixedHttpPort[]          = "testing-fixed-http-port";
 const char kTestingFixedHttpsPort[]         = "testing-fixed-https-port";
 
+// Enables sending touch cancel to renderer on scrolling.
+const char kTouchCancelOnScroll[]           = "touch-cancel-on-scroll";
+
 // Causes TRACE_EVENT flags to be recorded from startup. Optionally, can
 // specify the specific trace categories to include (e.g.
 // --trace-startup=base,net) otherwise, all events are recorded. Setting this
 // flag results in the first call to BeginTracing() to receive all trace events
 // since startup. In Chrome, you may find --trace-startup-file and
 // --trace-startup-duration to control the auto-saving of the trace (not
 // supported in the base-only TraceLog component).
 const char kTraceStartup[]                  = "trace-startup";
 
 // If supplied, sets the file which startup tracing will be stored into, if
@@ skipping 127 matching lines @@
 // Forward overscroll event data from the renderer to the browser.
 const char kEnableOverscrollNotifications[] = "enable-overscroll-notifications";
 
 // Enables 'image/webp' accept header for image requests.
 const char kEnableWebPInAcceptHeader[] = "enable-webp-in-accept-header";
 
 // Enables WebGL extensions not yet approved by the community.
 const char kEnableWebGLDraftExtensions[] = "enable-webgl-draft-extensions";
 
 }  // namespace switches