Remove //net (except for Android test stuff) and sdch

net/spdy/spdy_frame_builder.h

-// Copyright (c) 2012 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 NET_SPDY_SPDY_FRAME_BUILDER_H_
-#define NET_SPDY_SPDY_FRAME_BUILDER_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/strings/string_piece.h"
-#include "base/sys_byteorder.h"
-#include "net/base/net_export.h"
-#include "net/spdy/spdy_protocol.h"
-
-namespace net {
-
-class SpdyFramer;
-
-// This class provides facilities for basic binary value packing
-// into Spdy frames.
-//
-// The SpdyFrameBuilder supports appending primitive values (int, string, etc)
-// to a frame instance.  The SpdyFrameBuilder grows its internal memory buffer
-// dynamically to hold the sequence of primitive values.   The internal memory
-// buffer is exposed as the "data" of the SpdyFrameBuilder.
-class NET_EXPORT_PRIVATE SpdyFrameBuilder {
- public:
-  // Initializes a SpdyFrameBuilder with a buffer of given size
-  SpdyFrameBuilder(size_t size, SpdyMajorVersion version);
-
-  ~SpdyFrameBuilder();
-
-  // Returns the total size of the SpdyFrameBuilder's data, which may include
-  // multiple frames.
-  size_t length() const { return offset_ + length_; }
-
-  // Returns a writeable buffer of given size in bytes, to be appended to the
-  // currently written frame. Does bounds checking on length but does not
-  // increment the underlying iterator. To do so, consumers should subsequently
-  // call Seek().
-  // In general, consumers should use Write*() calls instead of this.
-  // Returns NULL on failure.
-  char* GetWritableBuffer(size_t length);
-
-  // Seeks forward by the given number of bytes. Useful in conjunction with
-  // GetWriteableBuffer() above.
-  bool Seek(size_t length);
-
-  // Populates this frame with a SPDY control frame header using
-  // version-specific information from the |framer| and length information from
-  // capacity_. The given type must be a control frame type.
-  // Used only for SPDY versions <4.
-  bool WriteControlFrameHeader(const SpdyFramer& framer,
-                               SpdyFrameType type,
-                               uint8 flags);
-
-  // Populates this frame with a SPDY data frame header using version-specific
-  // information from the |framer| and length information from capacity_.
-  bool WriteDataFrameHeader(const SpdyFramer& framer,
-                            SpdyStreamId stream_id,
-                            uint8 flags);
-
-  // Populates this frame with a SPDY4/HTTP2 frame prefix using
-  // version-specific information from the |framer| and length information from
-  // capacity_. The given type must be a control frame type.
-  // Used only for SPDY versions >=4.
-  bool BeginNewFrame(const SpdyFramer& framer,
-                     SpdyFrameType type,
-                     uint8 flags,
-                     SpdyStreamId stream_id);
-
-  // Takes the buffer from the SpdyFrameBuilder.
-  SpdyFrame* take() {
-    if (version_ > SPDY3) {
-      DLOG_IF(DFATAL, SpdyConstants::GetFrameMaximumSize(version_) < length_)
-          << "Frame length " << length_
-          << " is longer than the maximum allowed length.";
-    }
-    SpdyFrame* rv = new SpdyFrame(buffer_.release(), length(), true);
-    capacity_ = 0;
-    length_ = 0;
-    offset_ = 0;
-    return rv;
-  }
-
-  // Methods for adding to the payload.  These values are appended to the end
-  // of the SpdyFrameBuilder payload. Note - binary integers are converted from
-  // host to network form.
-  bool WriteUInt8(uint8 value) {
-    return WriteBytes(&value, sizeof(value));
-  }
-  bool WriteUInt16(uint16 value) {
-    value = htons(value);
-    return WriteBytes(&value, sizeof(value));
-  }
-  bool WriteUInt24(uint32 value) {
-    value = htonl(value);
-    return WriteBytes(reinterpret_cast<char*>(&value) + 1,
-                      sizeof(value) - 1);
-  }
-  bool WriteUInt32(uint32 value) {
-    value = htonl(value);
-    return WriteBytes(&value, sizeof(value));
-  }
-  bool WriteUInt64(uint64 value) {
-    uint32 upper = htonl(value >> 32);
-    uint32 lower = htonl(static_cast<uint32>(value));
-    return (WriteBytes(&upper, sizeof(upper)) &&
-            WriteBytes(&lower, sizeof(lower)));
-  }
-  // TODO(hkhalil) Rename to WriteStringPiece16().
-  bool WriteString(const std::string& value);
-  bool WriteStringPiece32(const base::StringPiece& value);
-  bool WriteBytes(const void* data, uint32 data_len);
-
-  // Update (in-place) the length field in the frame being built to reflect the
-  // current actual length of bytes written to said frame through this builder.
-  // The framer parameter is used to determine version-specific location and
-  // size information of the length field to be written, and must be initialized
-  // with the correct version for the frame being written.
-  bool RewriteLength(const SpdyFramer& framer);
-
-  // Update (in-place) the length field in the frame being built to reflect the
-  // given length.
-  // The framer parameter is used to determine version-specific location and
-  // size information of the length field to be written, and must be initialized
-  // with the correct version for the frame being written.
-  bool OverwriteLength(const SpdyFramer& framer, size_t length);
-
-  // Update (in-place) the flags field in the frame being built to reflect the
-  // given flags value.
-  // Used only for SPDY versions >=4.
-  bool OverwriteFlags(const SpdyFramer& framer, uint8 flags);
-
- private:
-  // Checks to make sure that there is an appropriate amount of space for a
-  // write of given size, in bytes.
-  bool CanWrite(size_t length) const;
-
-  scoped_ptr<char[]> buffer_;
-  size_t capacity_;  // Allocation size of payload, set by constructor.
-  size_t length_;    // Length of the latest frame in the buffer.
-  size_t offset_;    // Position at which the latest frame begins.
-
-  const SpdyMajorVersion version_;
-};
-
-}  // namespace net
-
-#endif  // NET_SPDY_SPDY_FRAME_BUILDER_H_