Integrating Online Wallet into Chrome.

base/string_number_conversions.cc

Index: base/string_number_conversions.cc
diff --git a/base/string_number_conversions.cc b/base/string_number_conversions.cc
index e80b6499f2e04c0787a48d08f87b306e9fc3e468..c55bbafff34ae70137167283e41146fd8da50597 100644
--- a/base/string_number_conversions.cc
+++ b/base/string_number_conversions.cc
@@ -302,9 +302,22 @@ class BaseHexIteratorRangeToIntTraits
   }
 };
 
+template<typename ITERATOR>
+class BaseHexIteratorRangeToInt64Traits
+    : public BaseIteratorRangeToNumberTraits<ITERATOR, int64, 16> {
+ public:
+  // Allow parsing of 0xFFFFFFFFFFFFFFFF, which is technically an overflow
+  static uint64 max() {
+    return std::numeric_limits<uint64>::max();
+  }
+};
+
 typedef BaseHexIteratorRangeToIntTraits<StringPiece::const_iterator>
     HexIteratorRangeToIntTraits;
 
+typedef BaseHexIteratorRangeToInt64Traits<StringPiece::const_iterator>
+    HexIteratorRangeToInt64Traits;
+
 template<typename STR>
 bool HexStringToBytesT(const STR& input, std::vector<uint8>* output) {
   DCHECK_EQ(output->size(), 0u);
@@ -481,6 +494,11 @@ bool HexStringToInt(const StringPiece& input, int* output) {
     input.begin(), input.end(), output);
 }
 
+bool HexStringToInt64(const StringPiece& input, int64* output) {
+  return IteratorRangeToNumber<HexIteratorRangeToInt64Traits>::Invoke(
+    input.begin(), input.end(), output);
+}
+
 bool HexStringToBytes(const std::string& input, std::vector<uint8>* output) {
   return HexStringToBytesT(input, output);
 }