Rewrite references to "wtf/" to "platform/wtf/" in the rest of platform/.

third_party/WebKit/Source/platform/image-encoders/ImageEncoderUtils.h

 // 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.
 
 #ifndef ImageEncoderUtils_h
 #define ImageEncoderUtils_h
 
 #include "platform/PlatformExport.h"
-#include "wtf/text/WTFString.h"
+#include "platform/wtf/text/WTFString.h"
 
 namespace blink {
 
 class PLATFORM_EXPORT ImageEncoderUtils {
  public:
   enum EncodeReason {
     kEncodeReasonToDataURL = 0,
     kEncodeReasonToBlobCallback = 1,
     kEncodeReasonConvertToBlobPromise = 2,
     kNumberOfEncodeReasons
   };
   static String ToEncodingMimeType(const String& mime_type, const EncodeReason);
 
   // Default image mime type for toDataURL and toBlob functions
   static const char kDefaultMimeType[];
 };
 
 }  // namespace blink
 
 #endif  // ImageEncoderUtils_h