Implement frame attribution (FrameBlamer)

base/test/trace_event_analyzer_unittest.cc

Index: base/test/trace_event_analyzer_unittest.cc
diff --git a/base/test/trace_event_analyzer_unittest.cc b/base/test/trace_event_analyzer_unittest.cc
index af1a3e0c3aa8fadfcb0c630b76f5c525822fccf8..5cd739d4cdfafde58d53d28e09d96efb55668496 100644
--- a/base/test/trace_event_analyzer_unittest.cc
+++ b/base/test/trace_event_analyzer_unittest.cc
@@ -98,6 +98,7 @@ TEST_F(TraceEventAnalyzerTest, TraceEvent) {
   event.arg_numbers["int"] = static_cast<double>(int_num);
   event.arg_numbers["double"] = double_num;
   event.arg_strings["string"] = str;
+  event.arg_values["dict"] = make_scoped_ptr(new base::DictionaryValue());
 
   ASSERT_TRUE(event.HasNumberArg("false"));
   ASSERT_TRUE(event.HasNumberArg("true"));
@@ -106,12 +107,18 @@ TEST_F(TraceEventAnalyzerTest, TraceEvent) {
   ASSERT_TRUE(event.HasStringArg("string"));
   ASSERT_FALSE(event.HasNumberArg("notfound"));
   ASSERT_FALSE(event.HasStringArg("notfound"));
+  ASSERT_TRUE(event.HasArg("dict"));
+  ASSERT_FALSE(event.HasArg("notfound"));
 
   EXPECT_FALSE(event.GetKnownArgAsBool("false"));
   EXPECT_TRUE(event.GetKnownArgAsBool("true"));
   EXPECT_EQ(int_num, event.GetKnownArgAsInt("int"));
   EXPECT_EQ(double_num, event.GetKnownArgAsDouble("double"));
   EXPECT_STREQ(str, event.GetKnownArgAsString("string").c_str());
+
+  scoped_ptr<base::Value> arg;
+  EXPECT_TRUE(event.GetArgAsValue("dict", &arg));
+  EXPECT_EQ(base::Value::TYPE_DICTIONARY, arg->GetType());
 }
 
 TEST_F(TraceEventAnalyzerTest, QueryEventMember) {