Work around Clang's new -Wmismatched-new-delete warning.

base/debug/stack_trace_unittest.cc

 // Copyright (c) 2011 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 <limits>
 #include <sstream>
 #include <string>
 
 #include "base/debug/stack_trace.h"
 #include "base/logging.h"
@@ skipping 117 matching lines @@
 }
 
 // The test is used for manual testing, e.g., to see the raw output.
 TEST_F(StackTraceTest, DebugPrintBacktrace) {
   StackTrace().Print();
 }
 #endif  // !defined(__UCLIBC__)
 
 #if defined(OS_POSIX) && !defined(OS_ANDROID)
 #if !defined(OS_IOS)
+static char* newArray() {
+  // Clang warns about the mismatched new[]/delete if they occur in the same
+  // function.
+  return new char[10];
+}
+
 MULTIPROCESS_TEST_MAIN(MismatchedMallocChildProcess) {
-  char* pointer = new char[10];
+  char* pointer = newArray();
   delete pointer;
   return 2;
 }
 
 // Regression test for StackDumpingSignalHandler async-signal unsafety.
 // Combined with tcmalloc's debugallocation, that signal handler
 // and e.g. mismatched new[]/delete would cause a hang because
 // of re-entering malloc.
 TEST_F(StackTraceTest, AsyncSignalUnsafeSignalHandlerHang) {
   Process child = SpawnChild("MismatchedMallocChildProcess");
@@ skipping 74 matching lines @@
   EXPECT_EQ("688", itoa_r_wrapper(0x688, 128, 16, 1));
   EXPECT_EQ("688", itoa_r_wrapper(0x688, 128, 16, 2));
   EXPECT_EQ("688", itoa_r_wrapper(0x688, 128, 16, 3));
   EXPECT_EQ("0688", itoa_r_wrapper(0x688, 128, 16, 4));
   EXPECT_EQ("00688", itoa_r_wrapper(0x688, 128, 16, 5));
 }
 #endif  // defined(OS_POSIX) && !defined(OS_ANDROID)
 
 }  // namespace debug
 }  // namespace base