tools: update inspector_protocol to fe0467fd105a

Refs: https://chromium.googlesource.com/deps/inspector_protocol/+log

PR-URL: #39694
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: Trott

tools/inspector_protocol/lib/encoding_cpp.template

@@ -850,14 +850,15 @@ void CBORTokenizer::ReadNextToken(bool enter_envelope) {
           return;
         case MajorType::NEGATIVE: {  // INT32.
           // INT32 is a signed int32 (int32 makes sense for the
-          // inspector_protocol, it's not a CBOR limitation); in CBOR,
-          // the negative values for INT32 are represented as NEGATIVE,
-          // that is, -1 INT32 is represented as 1 << 5 | 0 (major type 1,
-          // additional info value 0). So here, we compute the INT32 value
-          // and then check it against the INT32 min.
-          int64_t actual_value =
-              -static_cast<int64_t>(token_start_internal_value_) - 1;
-          if (!success || actual_value < std::numeric_limits<int32_t>::min()) {
+          // inspector_protocol, it's not a CBOR limitation); in CBOR, the
+          // negative values for INT32 are represented as NEGATIVE, that is, -1
+          // INT32 is represented as 1 << 5 | 0 (major type 1, additional info
+          // value 0). The minimal allowed INT32 value in our protocol is
+          // std::numeric_limits<int32_t>::min(). We check for it by directly
+          // checking the payload against the maximal allowed signed (!) int32
+          // value.
+          if (!success || token_start_internal_value_ >
+                              std::numeric_limits<int32_t>::max()) {
             SetError(Error::CBOR_INVALID_INT32);
             return;
           }
@@ -1864,7 +1865,7 @@ class JsonParser {
       // If the |Char| we're dealing with is really a byte, then
       // we have utf8 here, and we need to check for multibyte characters
       // and transcode them to utf16 (either one or two utf16 chars).
-      if (sizeof(Char) == sizeof(uint8_t) && c >= 0x7f) {
+      if (sizeof(Char) == sizeof(uint8_t) && c > 0x7f) {
         // Inspect the leading byte to figure out how long the utf8
         // byte sequence is; while doing this initialize |codepoint|
         // with the first few bits.
@@ -1903,7 +1904,7 @@ class JsonParser {
         // Disallow overlong encodings for ascii characters, as these
         // would include " and other characters significant to JSON
         // string termination / control.
-        if (codepoint < 0x7f)
+        if (codepoint <= 0x7f)
           return false;
         // Invalid in UTF8, and can't be represented in UTF16 anyway.
         if (codepoint > 0x10ffff)