MultiProcessTest: Update SpawnChild* to return a Process.

base/memory/shared_memory_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/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/shared_memory.h"
 #include "base/process/kill.h"
 #include "base/rand_util.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 681 matching lines @@
 
  private:
   static const char* const s_test_name_;
 };
 
 const char* const SharedMemoryProcessTest::s_test_name_ = "MPMem";
 
 TEST_F(SharedMemoryProcessTest, Tasks) {
   SharedMemoryProcessTest::CleanUp();
 
-  ProcessHandle handles[kNumTasks];
+  Process processes[kNumTasks];
   for (int index = 0; index < kNumTasks; ++index) {
-    handles[index] = SpawnChild("SharedMemoryTestMain");
-    ASSERT_TRUE(handles[index]);
+    processes[index] = SpawnChild("SharedMemoryTestMain");
+    ASSERT_TRUE(processes[index].IsValid());
   }
 
   int exit_code = 0;
   for (int index = 0; index < kNumTasks; ++index) {
-    EXPECT_TRUE(WaitForExitCode(handles[index], &exit_code));
+    EXPECT_TRUE(processes[index].WaitForExit(&exit_code));
     EXPECT_EQ(0, exit_code);
   }
 
   SharedMemoryProcessTest::CleanUp();
 }
 
 MULTIPROCESS_TEST_MAIN(SharedMemoryTestMain) {
   return SharedMemoryProcessTest::TaskTestMain();
 }
 
 #endif  // !OS_IOS
 
 }  // namespace base