Fix a bug in QUIC's SpdyUtils where Content-Length was being parsed as an int, not an int64, causin…

net/quic/spdy_utils.cc

Index: net/quic/spdy_utils.cc
diff --git a/net/quic/spdy_utils.cc b/net/quic/spdy_utils.cc
index 230c3a76d0fbf64ae6f107c616c8b2805db959ba..9f12ef5826d27e89faedb2f007eb349d65d0d88c 100644
--- a/net/quic/spdy_utils.cc
+++ b/net/quic/spdy_utils.cc
@@ -53,8 +53,8 @@ bool SpdyUtils::ParseHeaders(const char* data,
         base::SplitString(content_length_header, base::StringPiece("\0", 1),
                           base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
     for (const string& value : values) {
-      int new_value;
-      if (!base::StringToInt(value, &new_value) || new_value < 0) {
+      int64_t new_value;
+      if (!base::StringToInt64(value, &new_value) || new_value < 0) {
         return false;
       }
       if (*content_length < 0) {