Update SPDY4 settings ID to 16 bits (from 8).

net/spdy/spdy_framer.cc

Index: net/spdy/spdy_framer.cc
diff --git a/net/spdy/spdy_framer.cc b/net/spdy/spdy_framer.cc
index c828d168bab1093812664086e5807dbd9779992a..a3488568dcbb0a6e69d3bf3ab973d6c569ba1686 100644
--- a/net/spdy/spdy_framer.cc
+++ b/net/spdy/spdy_framer.cc
@@ -875,7 +875,7 @@ void SpdyFramer::ProcessControlFrameHeader(uint16 control_frame_type_field) {
       // plus a 4-byte length field in SPDY3 and below.
       size_t values_prefix_size = (protocol_version() <= SPDY3 ? 4 : 0);
       // Size of each key/value pair in bytes.
-      size_t setting_size = (protocol_version() <= SPDY3 ? 8 : 5);
+      size_t setting_size = SpdyConstants::GetSettingSize(protocol_version());
       if (current_frame_length_ < GetSettingsMinimumSize() ||
           (current_frame_length_ - GetControlFrameHeaderSize())
           % setting_size != values_prefix_size) {
@@ -1605,7 +1605,7 @@ size_t SpdyFramer::ProcessSettingsFramePayload(const char* data,
   size_t unprocessed_bytes = std::min(data_len, remaining_data_length_);
   size_t processed_bytes = 0;
 
-  size_t setting_size = protocol_version() <= SPDY3 ? 8 : 5;
+  size_t setting_size = SpdyConstants::GetSettingSize(protocol_version());
 
   // Loop over our incoming data.
   while (unprocessed_bytes > 0) {
@@ -1699,8 +1699,8 @@ bool SpdyFramer::ProcessSetting(const char* data) {
     flags = id_and_flags.flags();
     value = ntohl(*(reinterpret_cast<const uint32*>(data + 4)));
   } else {
-    id_field = *(reinterpret_cast<const uint8*>(data));
-    value = ntohl(*(reinterpret_cast<const uint32*>(data + 1)));
+    id_field = ntohs(*(reinterpret_cast<const uint16*>(data)));
+    value = ntohl(*(reinterpret_cast<const uint32*>(data + 2)));
   }
 
   // Validate id.
@@ -2451,7 +2451,7 @@ SpdySerializedFrame* SpdyFramer::SerializeSettings(
   }
   const SpdySettingsIR::ValueMap* values = &(settings.values());
 
-  size_t setting_size = (protocol_version() <= SPDY3 ? 8 : 5);
+  size_t setting_size = SpdyConstants::GetSettingSize(protocol_version());
   // Size, in bytes, of this SETTINGS frame.
   const size_t size = GetSettingsMinimumSize() +
                       (values->size() * setting_size);
@@ -2488,8 +2488,8 @@ SpdySerializedFrame* SpdyFramer::SerializeSettings(
       uint32 id_and_flags_wire = flags_and_id.GetWireFormat(protocol_version());
       builder.WriteBytes(&id_and_flags_wire, 4);
     } else {
-      builder.WriteUInt8(SpdyConstants::SerializeSettingId(protocol_version(),
-                                                           it->first));
+      builder.WriteUInt16(SpdyConstants::SerializeSettingId(protocol_version(),
+                                                            it->first));
     }
     builder.WriteUInt32(it->second.value);
   }