Add TYPE_INTEGER64 type to base::Value.

base/json/json_writer_unittest.cc

Index: base/json/json_writer_unittest.cc
diff --git a/base/json/json_writer_unittest.cc b/base/json/json_writer_unittest.cc
index 5d44c020efa5b59ce405dce26e98e484d60e18fc..f74714383f5a55b53fcdd8b08fa102c13fc18f56 100644
--- a/base/json/json_writer_unittest.cc
+++ b/base/json/json_writer_unittest.cc
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/basictypes.h"
 #include "base/json/json_writer.h"
 #include "base/values.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -28,6 +29,12 @@ TEST(JSONWriterTest, Writing) {
   ASSERT_EQ("[]", output_js);
   delete root;
 
+  // Test 64-bit integers. These should not have an 'e'.
+  root = Value::CreateInteger64Value(kint64max);
+  JSONWriter::Write(root, false, &output_js);
+  ASSERT_EQ("9223372036854775807", output_js);
+  delete root;
+
   // Test Real values should always have a decimal or an 'e'.
   root = Value::CreateDoubleValue(1.0);
   JSONWriter::Write(root, false, &output_js);