Fix LatencyInfo compile error for ipc fuzzer

tools/ipc_fuzzer/fuzzer/fuzzer.cc

Index: tools/ipc_fuzzer/fuzzer/fuzzer.cc
diff --git a/tools/ipc_fuzzer/fuzzer/fuzzer.cc b/tools/ipc_fuzzer/fuzzer/fuzzer.cc
index 9e57c514360486349ecd5e7a7939a0cc5fe8c6ad..df08076fc401d44706870e4016f1e76e025ffd35 100644
--- a/tools/ipc_fuzzer/fuzzer/fuzzer.cc
+++ b/tools/ipc_fuzzer/fuzzer/fuzzer.cc
@@ -1764,14 +1764,14 @@ template <>
 struct FuzzTraits<ui::LatencyInfo> {
   static bool Fuzz(ui::LatencyInfo* p, Fuzzer* fuzzer) {
     // TODO(inferno): Add param traits for |latency_components|.
-    p->input_coordinates_size = static_cast<uint32>(
+    p->input_coordinates_size_ = static_cast<uint32>(
         RandInRange(ui::LatencyInfo::kMaxInputCoordinates + 1));
     if (!FuzzParamArray(
-        &p->input_coordinates[0], p->input_coordinates_size, fuzzer))
+        &p->input_coordinates_[0], p->input_coordinates_size_, fuzzer))
       return false;
-    if (!FuzzParam(&p->trace_id, fuzzer))
+    if (!FuzzParam(&p->trace_id_, fuzzer))
       return false;
-    if (!FuzzParam(&p->terminated, fuzzer))
+    if (!FuzzParam(&p->terminated_, fuzzer))
       return false;
     return true;

[inferno, 2015/08/05 15:40:01]

Can't we just call a ui::LatencyInfo constructor that construct using the local
vars you created in the last patch. then we won't this friend class hack.

[Yufeng Shen (Slow to review), 2015/08/05 16:08:24]

LatencyInfo is not supposed to be constructed with those values passed in
actually. But anyway, I wrote a test-only constructor
for this purpose.

   }