Introduce new SpdyConstants class

net/spdy/spdy_frame_builder.cc

Index: net/spdy/spdy_frame_builder.cc
diff --git a/net/spdy/spdy_frame_builder.cc b/net/spdy/spdy_frame_builder.cc
index 1df7d4668b44d170a6696444b9cbfe6eb1af6256..5b084126fd9a2f5487723db083d64407f11a6142 100644
--- a/net/spdy/spdy_frame_builder.cc
+++ b/net/spdy/spdy_frame_builder.cc
@@ -60,14 +60,15 @@ bool SpdyFrameBuilder::Seek(size_t length) {
 bool SpdyFrameBuilder::WriteControlFrameHeader(const SpdyFramer& framer,
                                                SpdyFrameType type,
                                                uint8 flags) {
-  DCHECK_GE(type, FIRST_CONTROL_TYPE);
-  DCHECK_LE(type, LAST_CONTROL_TYPE);
   DCHECK_GT(4, framer.protocol_version());
+  DCHECK_NE(-1,
+            SpdyConstants::SerializeFrameType(framer.protocol_version(), type));
   bool success = true;
   FlagsAndLength flags_length = CreateFlagsAndLength(
       flags, capacity_ - framer.GetControlFrameHeaderSize());
   success &= WriteUInt16(kControlFlagMask | framer.protocol_version());
-  success &= WriteUInt16(type);
+  success &= WriteUInt16(
+      SpdyConstants::SerializeFrameType(framer.protocol_version(), type));
   success &= WriteBytes(&flags_length, sizeof(flags_length));
   DCHECK_EQ(framer.GetControlFrameHeaderSize(), length());
   return success;
@@ -97,8 +98,8 @@ bool SpdyFrameBuilder::WriteFramePrefix(const SpdyFramer& framer,
                                         SpdyFrameType type,
                                         uint8 flags,
                                         SpdyStreamId stream_id) {
-  DCHECK_LE(DATA, type);
-  DCHECK_GE(LAST_CONTROL_TYPE, type);
+  DCHECK_NE(-1,
+            SpdyConstants::SerializeFrameType(framer.protocol_version(), type));
   DCHECK_EQ(0u, stream_id & ~kStreamIdMask);
   DCHECK_LE(4, framer.protocol_version());
   bool success = true;
@@ -110,7 +111,8 @@ bool SpdyFrameBuilder::WriteFramePrefix(const SpdyFramer& framer,
   } else {
     success &= WriteUInt16(capacity_ - framer.GetDataFrameMinimumSize());
   }
-  success &= WriteUInt8(type);
+  success &= WriteUInt8(
+      SpdyConstants::SerializeFrameType(framer.protocol_version(), type));
   success &= WriteUInt8(flags);
   success &= WriteUInt32(stream_id);
   DCHECK_EQ(framer.GetDataFrameMinimumSize(), length());