MultiProcessTest: Update SpawnChild* to return a Process.

base/metrics/stats_table_unittest.cc

 // Copyright (c) 2012 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 "base/memory/shared_memory.h"
 #include "base/metrics/stats_counters.h"
 #include "base/metrics/stats_table.h"
 #include "base/process/kill.h"
 #include "base/strings/string_piece.h"
 #include "base/strings/stringprintf.h"
@@ skipping 182 matching lines @@
   // Create a stats table.
   const int kMaxProcs = 20;
   const int kMaxCounter = 5;
   StatsTable table(kMPTableName, kMaxProcs, kMaxCounter);
   StatsTable::set_current(&table);
   EXPECT_EQ(0, table.CountThreadsRegistered());
 
   // Spin up a set of processes to go bang on the various counters.
   // After we join the processes, we'll make sure the counters
   // contain the values we expected.
-  ProcessHandle procs[kMaxProcs];
+  Process procs[kMaxProcs];
 
   // Spawn the processes.
   for (int16 index = 0; index < kMaxProcs; index++) {
     procs[index] = SpawnChild("StatsTableMultipleProcessMain");
-    EXPECT_NE(kNullProcessHandle, procs[index]);
+    EXPECT_TRUE(procs[index].IsValid());
   }
 
   // Wait for the processes to finish.
   for (int index = 0; index < kMaxProcs; index++) {
-    EXPECT_TRUE(WaitForSingleProcess(
-        procs[index], base::TimeDelta::FromMinutes(1)));
-    CloseProcessHandle(procs[index]);
+    EXPECT_TRUE(WaitForSingleProcess(procs[index].Handle(),
+                                     base::TimeDelta::FromMinutes(1)));
+    procs[index].Close();
   }
 
   StatsCounter zero_counter(kCounterZero);
   StatsCounter lucky13_counter(kCounter1313);
   StatsCounter increment_counter(kCounterIncrement);
   StatsCounter decrement_counter(kCounterDecrement);
 
   // Verify the various counters are correct.
   std::string name;
   name = "c:" + kCounterZero;
@@ skipping 167 matching lines @@
     StatsScope<StatsCounterTimer> timer(foo);
     StatsScope<StatsRate> timer2(bar);
     PlatformThread::Sleep(kDuration);
   }
   EXPECT_LE(kDuration.InMilliseconds() * 2, table.GetCounterValue("t:foo"));
   EXPECT_LE(kDuration.InMilliseconds() * 2, table.GetCounterValue("t:bar"));
   EXPECT_EQ(2, table.GetCounterValue("c:bar"));
 }
 
 }  // namespace base