Rename FormData/FormDataBuilder to EncodedFormData/FormDataEncoder respectively.

Source/modules/fetch/FetchDataConsumerHandle.h

 // Copyright 2015 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 FetchDataConsumerHandle_h
 #define FetchDataConsumerHandle_h
 
 #include "modules/ModulesExport.h"
 #include "platform/blob/BlobData.h"
-#include "platform/network/FormData.h"
+#include "platform/network/EncodedFormData.h"
 #include "public/platform/WebDataConsumerHandle.h"
 #include "wtf/Forward.h"
 #include "wtf/PassRefPtr.h"
 
 namespace blink {
 
 // This is an interface class that adds Reader's blobDataHandle() to
 // WebDataConsumerHandle.
 // This class works not very well with Oilpan: As this class is not garbage
 // collected while many clients or related objects may be, it is very easy
@@ skipping 26 matching lines @@
         // is regarded as read.
 
         // Drains the data as a BlobDataHandle.
         // The returned non-null blob handle contains bytes that would be read
         // through WebDataConsumerHandle::Reader APIs without calling this
         // function.
         // When |policy| is DisallowBlobWithInvalidSize, this function doesn't
         // return a non-null blob handle with unspecified size.
         virtual PassRefPtr<BlobDataHandle> drainAsBlobDataHandle(BlobSizePolicy = DisallowBlobWithInvalidSize) { return nullptr; }
 
-        // Drains the data as a FormData.
+        // Drains the data as an EncodedFormData.
         // This function returns a non-null form data when the handle is made
-        // from a FormData-convertible value.
-        virtual PassRefPtr<FormData> drainAsFormData() { return nullptr; }
+        // from an EncodedFormData-convertible value.
+        virtual PassRefPtr<EncodedFormData> drainAsFormData() { return nullptr; }
     };
 
     // TODO(yhirano): obtainReader() is currently non-virtual override, and
     // will be changed into virtual override when we can use scoped_ptr /
     // unique_ptr in both Blink and Chromium.
     PassOwnPtr<Reader> obtainReader(Client* client) { return adoptPtr(obtainReaderInternal(client)); }
 
 private:
     Reader* obtainReaderInternal(Client*) override = 0;
 };
 
 } // namespace blink
 
 #endif // FetchDataConsumerHandle_h