Implement position: sticky updates on compositor

third_party/WebKit/public/BUILD.gn

 # Copyright 2014 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.
 
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//third_party/WebKit/Source/config.gni")
 import("//tools/grit/grit_rule.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
@@ skipping 190 matching lines @@
     "platform/WebImageGenerator.h",
     "platform/WebImageLayer.h",
     "platform/WebInbandTextTrack.h",
     "platform/WebInbandTextTrackClient.h",
     "platform/WebInputEvent.h",
     "platform/WebInputEventResult.h",
     "platform/WebInsecureRequestPolicy.h",
     "platform/WebLayer.h",
     "platform/WebLayerPositionConstraint.h",
     "platform/WebLayerScrollClient.h",
+    "platform/WebLayerStickyPositionConstraint.h",
     "platform/WebLayerTreeView.h",
     "platform/WebLayoutAndPaintAsyncCallback.h",
     "platform/WebLocalizedString.h",
     "platform/WebMediaConstraints.h",
     "platform/WebMediaDeviceInfo.h",
     "platform/WebMediaKeySystemConfiguration.h",
     "platform/WebMediaKeySystemMediaCapability.h",
     "platform/WebMediaPlayer.h",
     "platform/WebMediaPlayerClient.h",
     "platform/WebMediaPlayerSource.h",
@@ skipping 514 matching lines @@
   export_define_blink = "BLINK_PLATFORM_IMPLEMENTATION=1"
   export_header_blink = "third_party/WebKit/public/platform/WebCommon.h"
 }
 
 group("generate_mojo_bindings") {
   deps = [
     ":mojo_bindings_blink__generator",
     ":offscreen_canvas_mojo_bindings_blink__generator",
   ]
 }