[ZLIB] Add support for windowBits, memLevel, raw

runtime/bin/filter.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef BIN_FILTER_H_
 #define BIN_FILTER_H_
 
 #include "bin/builtin.h"
 #include "bin/utils.h"
 
@@ skipping 36 matching lines @@
  private:
   static const intptr_t kFilterBufferSize = 64 * KB;
   uint8_t processed_buffer_[kFilterBufferSize];
   bool initialized_;
 
   DISALLOW_COPY_AND_ASSIGN(Filter);
 };
 
 class ZLibDeflateFilter : public Filter {
  public:
-  ZLibDeflateFilter(bool gzip = false, int level = 6)
-    : gzip_(gzip), level_(level), current_buffer_(NULL) {}
+  ZLibDeflateFilter(bool gzip = false, int level = 6, int windowBits = 15,
+                    bool raw = false) :
+        gzip_(gzip), level_(level), windowBits_(windowBits), raw_(raw),
+        current_buffer_(NULL)
+    {}
   virtual ~ZLibDeflateFilter();
 
   virtual bool Init();
   virtual bool Process(uint8_t* data, intptr_t length);
   virtual intptr_t Processed(uint8_t* buffer,
                              intptr_t length,
                              bool finish,
                              bool end);
 
  private:
   const bool gzip_;
   const int level_;
+  const int windowBits_;
+  const bool raw_;
   uint8_t* current_buffer_;
   z_stream stream_;
 
   DISALLOW_COPY_AND_ASSIGN(ZLibDeflateFilter);
 };
 
 class ZLibInflateFilter : public Filter {
  public:
-  ZLibInflateFilter() : current_buffer_(NULL) {}
+  ZLibInflateFilter(int windowBits = 15, bool raw = false) :
+      windowBits_(windowBits), raw_(raw), current_buffer_(NULL)
+    {}
   virtual ~ZLibInflateFilter();
 
   virtual bool Init();
   virtual bool Process(uint8_t* data, intptr_t length);
   virtual intptr_t Processed(uint8_t* buffer,
                              intptr_t length,
                              bool finish,
                              bool end);
 
  private:
+  const int windowBits_;
+  const bool raw_;
   uint8_t* current_buffer_;
   z_stream stream_;
 
   DISALLOW_COPY_AND_ASSIGN(ZLibInflateFilter);
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // BIN_FILTER_H_