Remove enum SpdyMajorVersion.

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 <stddef.h>
 #include <stdint.h>
 
@@ skipping 13 matching lines @@
 // 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);
+  explicit SpdyFrameBuilder(size_t size);
 
   ~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 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 HTTP2.
+  // Populates this frame with a HTTP2 frame prefix using length information
+  // from |capacity_|. The given type must be a control frame type.
   bool BeginNewFrame(const SpdyFramer& framer,
                      SpdyFrameType type,
                      uint8_t flags,
                      SpdyStreamId stream_id);
 
   // Takes the buffer from the SpdyFrameBuilder.
   SpdySerializedFrame take() {
-    if (version_ == HTTP2) {
-      SPDY_BUG_IF(SpdyConstants::GetMaxFrameSizeLimit(version_) < length_)
-          << "Frame length " << length_
-          << " is longer than the maximum possible allowed length.";
-    }
+    SPDY_BUG_IF(SpdyConstants::kMaxFrameSizeLimit < length_)
+        << "Frame length " << length_
+        << " is longer than the maximum possible allowed length.";
     SpdySerializedFrame rv(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.
@@ skipping 30 matching lines @@
 
   // 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_t 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;
 
   std::unique_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_