Rewrite references to "wtf/" to "platform/wtf/" in core/frame.

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

 // Copyright 2017 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/FrameLifecycle.h"
 
-#include "wtf/Assertions.h"
+#include "platform/wtf/Assertions.h"
 
 namespace blink {
 
 FrameLifecycle::FrameLifecycle() : state_(kAttached) {}
 
 void FrameLifecycle::AdvanceTo(State state) {
   switch (state) {
     case kAttached:
     case kDetached:
       // Normally, only allow state to move forward.
       DCHECK_GT(state, state_);
       break;
     case kDetaching:
       // We can go from Detaching to Detaching since the detach() method can be
       // re-entered.
       DCHECK_GE(state, state_);
       break;
   }
   state_ = state;
 }
 
 }  // namespace blink