Make TracedValue lower overhead.

base/pickle_unittest.cc

Index: base/pickle_unittest.cc
diff --git a/base/pickle_unittest.cc b/base/pickle_unittest.cc
index cc384c70617ae354ae31b8bc7a52c7c4cf9fce6e..f7c734de30eddff5e89860dcc0656a3570ea0e77 100644
--- a/base/pickle_unittest.cc
+++ b/base/pickle_unittest.cc
@@ -20,6 +20,7 @@ const int testdatalen = arraysize(testdata) - 1;
 const bool testbool1 = false;
 const bool testbool2 = true;
 const uint16 testuint16 = 32123;
+const uintptr_t testuintptr_t = 42;
 const float testfloat = 3.1415926935f;
 
 // checks that the result
@@ -48,6 +49,10 @@ void VerifyResult(const Pickle& pickle) {
   EXPECT_TRUE(pickle.ReadUInt16(&iter, &outuint16));
   EXPECT_EQ(testuint16, outuint16);
 
+  uintptr_t outuintptr_t;
+  EXPECT_TRUE(pickle.ReadUIntPtr(&iter, &outuintptr_t));
+  EXPECT_EQ(testuintptr_t, outuintptr_t);
+
   float outfloat;
   EXPECT_TRUE(pickle.ReadFloat(&iter, &outfloat));
   EXPECT_EQ(testfloat, outfloat);
@@ -77,6 +82,7 @@ TEST(PickleTest, EncodeDecode) {
   EXPECT_TRUE(pickle.WriteBool(testbool1));
   EXPECT_TRUE(pickle.WriteBool(testbool2));
   EXPECT_TRUE(pickle.WriteUInt16(testuint16));
+  EXPECT_TRUE(pickle.WriteUIntPtr(testuintptr_t));
   EXPECT_TRUE(pickle.WriteFloat(testfloat));
   EXPECT_TRUE(pickle.WriteData(testdata, testdatalen));