Add CompositorTouchAction to RuntimeEnabledFeatures.

content/public/common/content_features.cc

 // Copyright 2015 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 "build/build_config.h"
 #include "content/public/common/content_features.h"
 
 namespace features {
 
 // All features in alphabetical order.
@@ skipping 37 matching lines @@
 // Enables the compositing of fixed position content that is opaque and can
 // preserve LCD text.
 const base::Feature kCompositeOpaqueFixedPosition{
     "CompositeOpaqueFixedPosition", base::FEATURE_DISABLED_BY_DEFAULT};
 
 // Enables the compositing of scrolling content that supports painting the
 // background with the foreground, such that LCD text will still be enabled.
 const base::Feature kCompositeOpaqueScrollers{"CompositeOpaqueScrollers",
                                               base::FEATURE_ENABLED_BY_DEFAULT};
 
+// Enables handling touch events in compositor using impl side touch action
+// knowledge.
+const base::Feature kCompositorTouchAction{"CompositorTouchAction",
+                                           base::FEATURE_DISABLED_BY_DEFAULT};
+
 // Speculatively pre-evaluate Javascript which will likely use document.write to
 // load an external script. The feature extracts the written markup and sends it
 // to the preload scanner.
 const base::Feature kDocumentWriteEvaluator{"DocumentWriteEvaluator",
                                             base::FEATURE_DISABLED_BY_DEFAULT};
 
 // Throttle tasks in Blink background timer queues based on CPU budgets
 // for the background tab. Bug: https://crbug.com/639852.
 const base::Feature kExpensiveBackgroundTimerThrottling{
     "ExpensiveBackgroundTimerThrottling", base::FEATURE_DISABLED_BY_DEFAULT};
@@ skipping 300 matching lines @@
 #endif
 
 #if defined(OS_WIN)
 // Emergency "off switch" for new Windows sandbox security mitigation,
 // sandbox::MITIGATION_EXTENSION_POINT_DISABLE.
 const base::Feature kWinSboxDisableExtensionPoints{
     "WinSboxDisableExtensionPoint", base::FEATURE_ENABLED_BY_DEFAULT};
 #endif
 
 }  // namespace features