Remove SPDY/2 code.

net/spdy/spdy_headers_block_parser.h

Index: net/spdy/spdy_headers_block_parser.h
diff --git a/net/spdy/spdy_headers_block_parser.h b/net/spdy/spdy_headers_block_parser.h
index 6f1dd679a4eca98d6bf73e7d78bd40c26f53e026..4ee8760dc7d7913bfc37663446de4414626e0bd8 100644
--- a/net/spdy/spdy_headers_block_parser.h
+++ b/net/spdy/spdy_headers_block_parser.h
@@ -64,11 +64,8 @@ class NET_EXPORT_PRIVATE SpdyHeadersBlockParser {
 
   SpdyMajorVersion spdy_version() const { return spdy_version_; }
 
-  // Returns the size in bytes of a length field in a SPDY header.
-  static size_t LengthFieldSizeForVersion(SpdyMajorVersion spdy_version);
-
   // Returns the maximal number of headers in a SPDY headers block.
-  static size_t MaxNumberOfHeadersForVersion(SpdyMajorVersion spdy_version);
+  static size_t MaxNumberOfHeaders();
 
  private:
   typedef SpdyPrefixedBufferReader Reader;
@@ -93,9 +90,6 @@ class NET_EXPORT_PRIVATE SpdyHeadersBlockParser {
   };
   ParserState state_;
 
-  // Size in bytes of a length field in the spdy header.
-  const size_t length_field_size_;
-
   // The maximal number of headers in a SPDY headers block.
   const size_t max_headers_in_block_;