Eliminate SkFILE - it always is the same as FILE.

include/core/SkStream.h

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkStream_DEFINED
 #define SkStream_DEFINED
 
@@ skipping 206 matching lines @@
      * 'value'.
      */
     static int SizeOfPackedUInt(size_t value);
 };
 
 ////////////////////////////////////////////////////////////////////////////////////////
 
 #include "SkString.h"
 #include <stdio.h>
 
-struct SkFILE;
-
 /** A stream that wraps a C FILE* file stream. */
 class SK_API SkFILEStream : public SkStreamAsset {
 public:
     /** Initialize the stream by calling sk_fopen on the specified path.
      *  This internal stream will be closed in the destructor.
      */
     explicit SkFILEStream(const char path[] = NULL);
 
     enum Ownership {
         kCallerPasses_Ownership,
@@ skipping 25 matching lines @@
     size_t getPosition() const override;
     bool seek(size_t position) override;
     bool move(long offset) override;
     SkStreamAsset* fork() const override;
 
     size_t getLength() const override;
 
     const void* getMemoryBase() override;
 
 private:
-    SkFILE*     fFILE;
+    FILE*     fFILE;
     SkString    fName;
     Ownership   fOwnership;
     // fData is lazilly initialized when needed.
     mutable SkAutoTUnref<SkData> fData;
 
     typedef SkStreamAsset INHERITED;
 };
 
 class SK_API SkMemoryStream : public SkStreamMemory {
 public:
@@ skipping 72 matching lines @@
 
     /** Returns true if the current path could be opened.
     */
     bool isValid() const { return fFILE != NULL; }
 
     bool write(const void* buffer, size_t size) override;
     void flush() override;
     size_t bytesWritten() const override;
 
 private:
-    SkFILE* fFILE;
+    FILE* fFILE;
 
     typedef SkWStream INHERITED;
 };
 
 class SkMemoryWStream : public SkWStream {
 public:
     SkMemoryWStream(void* buffer, size_t size);
     bool write(const void* buffer, size_t size) override;
     size_t bytesWritten() const override { return fBytesWritten; }
 
@@ skipping 62 matching lines @@
 
 private:
     size_t fBytesWritten;
     typedef SkWStream INHERITED;
 };
 
 // for now
 typedef SkFILEStream SkURLStream;
 
 #endif