Fix LatencyInfo compile error for ipc fuzzer

tools/ipc_fuzzer/fuzzer/fuzzer.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <iostream>
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 1746 matching lines @@
         return false;
       }
     }
   }
 };
 
 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.

   }
 };
 
 template <>
 struct FuzzTraits<ui::LatencyInfo::InputCoordinate> {
   static bool Fuzz(
       ui::LatencyInfo::InputCoordinate* p, Fuzzer* fuzzer) {
     if (!FuzzParam(&p->x, fuzzer))
       return false;
     if (!FuzzParam(&p->y, fuzzer))
@@ skipping 307 matching lines @@
 #include "tools/ipc_fuzzer/message_lib/all_message_null_macros.h"
 #undef IPC_MESSAGE_DECL
 #define IPC_MESSAGE_DECL(kind, type, name, in, out, ilist, olist) \
   (*map)[static_cast<uint32>(name::ID)] = fuzzer_for_##name;
 
 void PopulateFuzzerFunctionMap(FuzzerFunctionMap* map) {
 #include "tools/ipc_fuzzer/message_lib/all_messages.h"
 }
 
 }  // namespace ipc_fuzzer