Use system properties for heap profiler in Android instead of environment variables.

third_party/tcmalloc/chromium/src/deep-heap-profile.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.
 
 // ---
 // Author: Sainbayar Sukhbaatar
 //         Dai Mikurube
 //
 
 #include "deep-heap-profile.h"
 
-#ifdef DEEP_HEAP_PROFILE
+#ifdef USE_DEEP_HEAP_PROFILE
 #include <algorithm>
 #include <fcntl.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>  // for getpagesize and getpid
 #endif  // HAVE_UNISTD_H
 
 #include "base/cycleclock.h"
 #include "base/sysinfo.h"
@@ skipping 882 matching lines @@
   RAW_DCHECK(fd != kIllegalRawFD, "");
 
   int length;
   bool wrote_all;
   length = tcmalloc::FillProcSelfMaps(raw_buffer, buffer_size, &wrote_all);
   RAW_DCHECK(wrote_all, "");
   RAW_DCHECK(length <= buffer_size, "");
   RawWrite(fd, raw_buffer, length);
   RawClose(fd);
 }
-#else  // DEEP_HEAP_PROFILE
+#else  // USE_DEEP_HEAP_PROFILE
 
 DeepHeapProfile::DeepHeapProfile(HeapProfileTable* heap_profile,
                                  const char* prefix)
     : heap_profile_(heap_profile) {
 }
 
 DeepHeapProfile::~DeepHeapProfile() {
 }
 
 int DeepHeapProfile::FillOrderedProfile(char raw_buffer[], int buffer_size) {
   return heap_profile_->FillOrderedProfile(raw_buffer, buffer_size);
 }
 
-#endif  // DEEP_HEAP_PROFILE
+#endif  // USE_DEEP_HEAP_PROFILE