Adding raw tracing to trace framework.

base/debug/trace_event_unittest.cc

Index: base/debug/trace_event_unittest.cc
diff --git a/base/debug/trace_event_unittest.cc b/base/debug/trace_event_unittest.cc
index 75a6ce4e5dce8d8bcf92df7ae83e93ece2038508..eff567cf88194759a066946ff98c30c0ca2e2c46 100644
--- a/base/debug/trace_event_unittest.cc
+++ b/base/debug/trace_event_unittest.cc
@@ -379,6 +379,12 @@ void TraceWithAllMacroVariants(WaitableEvent* task_complete_event) {
     TRACE_COUNTER_ID1("all", "TRACE_COUNTER_ID1 call", 0x319009, 31415);
     TRACE_COUNTER_ID2("all", "TRACE_COUNTER_ID2 call", 0x319009,
                       "a", 30000, "b", 1415);
+
+    TRACE_EVENT_COPY_BEGIN_EXPLICIT0("all",
+                                     "TRACE_EVENT_COPY_BEGIN_EXPLICIT0 call",
+                                     1, 12345);
+    TRACE_EVENT_COPY_END_EXPLICIT0("all", "TRACE_EVENT_COPY_END_EXPLICIT0 call",
+                                   1, 23456);
   } // Scope close causes TRACE_EVENT0 etc to send their END events.
 
   if (task_complete_event)
@@ -598,6 +604,26 @@ void ValidateAllTraceMacrosCreatedData(const ListValue& trace_parsed) {
     EXPECT_TRUE((item && item->GetInteger("args.b", &value)));
     EXPECT_EQ(1415, value);
   }
+
+  EXPECT_FIND_("TRACE_EVENT_COPY_BEGIN_EXPLICIT0 call");
+  {
+    int val;
+    EXPECT_TRUE((item && item->GetInteger("ts", &val)));
+    EXPECT_EQ(12345, val);
+    std::string id;
+    EXPECT_TRUE((item && item->GetString("id", &id)));
+    EXPECT_EQ("1", id);
+  }
+
+  EXPECT_FIND_("TRACE_EVENT_COPY_END_EXPLICIT0 call");
+  {
+    int val;
+    EXPECT_TRUE((item && item->GetInteger("ts", &val)));
+    EXPECT_EQ(23456, val);
+    std::string id;
+    EXPECT_TRUE((item && item->GetString("id", &id)));
+    EXPECT_EQ("1", id);
+  }
 }
 
 void TraceManyInstantEvents(int thread_id, int num_events,