Revert of Punt touch UGI deprecation to M56

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

Index: third_party/WebKit/Source/core/frame/Deprecation.cpp
diff --git a/third_party/WebKit/Source/core/frame/Deprecation.cpp b/third_party/WebKit/Source/core/frame/Deprecation.cpp
index d77b6d6091b446fddccfc005c2fa0d790a89daa6..efdc481dfc8899178b3e40a6bd80de5f78e87b46 100644
--- a/third_party/WebKit/Source/core/frame/Deprecation.cpp
+++ b/third_party/WebKit/Source/core/frame/Deprecation.cpp
@@ -15,6 +15,7 @@
 namespace {
 
 enum Milestone {
+  M55,
   M56,
   M57,
   M58,
@@ -26,6 +27,8 @@
   // https://www.chromium.org/developers/calendar
 
   switch (milestone) {
+    case M55:
+      return "M55, around December 2016";
     case M56:
       return "M56, around January 2017";
     case M57:
@@ -440,19 +443,19 @@
       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,