Revert of Punt touch UGI deprecation to M56

third_party/WebKit/Source/core/frame/Deprecation.cpp

 // Copyright 2016 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 "core/frame/Deprecation.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/frame/FrameConsole.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/LocalFrame.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/workers/WorkerGlobalScope.h"
 
 namespace {
 
 enum Milestone {
+  M55,
   M56,
   M57,
   M58,
   M59,
 };
 
 const char* milestoneString(Milestone milestone) {
   // These are the Estimated Stable Dates:
   // https://www.chromium.org/developers/calendar
 
   switch (milestone) {
+    case M55:
+      return "M55, around December 2016";
     case M56:
       return "M56, around January 2017";
     case M57:
       return "M57, around March 2017";
     case M58:
       return "M58, around April 2017";
     case M59:
       return "M59, around June 2017";
   }
 
@@ skipping 394 matching lines @@
           "EME requires that contentType strings accepted by "
           "requestMediaKeySystemAccess() include codecs. Non-standard support "
           "for contentType strings without codecs will be removed in %s. "
           "Please specify the desired codec(s) as part of the contentType.",
           milestoneString(M56));
 
     case UseCounter::TouchStartUserGestureUtilized:
       return willBeRemoved(
           "Performing operations that require explicit user interaction on "
           "touchstart events",
-          M56, "5649871251963904");
+          M55, "5649871251963904");
 
     case UseCounter::TouchMoveUserGestureUtilized:
       return willBeRemoved(
           "Performing operations that require explicit user interaction on "
           "touchmove events",
-          M56, "5649871251963904");
+          M55, "5649871251963904");
 
     case UseCounter::TouchEndDuringScrollUserGestureUtilized:
       return willBeRemoved(
           "Performing operations that require explicit user interaction on "
           "touchend events that occur as part of a scroll",
-          M56, "5649871251963904");
+          M55, "5649871251963904");
 
     case UseCounter::MIDIMessageEventReceivedTime:
       return willBeRemoved("MIDIMessageEvent.receivedTime", M56,
                            "5665772797952000");
 
     case UseCounter::V8SVGSVGElement_UseCurrentView_AttributeGetter:
       return willBeRemoved("SVGSVGElement.useCurrentView", M56,
                            "4511711998509056");
 
     case UseCounter::V8SVGSVGElement_CurrentView_AttributeGetter:
@@ skipping 14 matching lines @@
     case UseCounter::PaymentAddressCareOf:
       return willBeRemoved("PaymentAddress.careOf", M56, "5728579069411328");
 
     // Features that aren't deprecated don't have a deprecation message.
     default:
       return String();
   }
 }
 
 }  // namespace blink