Enable tcmalloc's logging in Android.

third_party/tcmalloc/chromium/src/base/logging.h

Index: third_party/tcmalloc/chromium/src/base/logging.h
diff --git a/third_party/tcmalloc/chromium/src/base/logging.h b/third_party/tcmalloc/chromium/src/base/logging.h
index 5b5b5dbfd69566a0b6e9152a0d99725d07765d4e..f2c328a2afbcfc8b49c8479b70727b0cbbbb59b2 100644
--- a/third_party/tcmalloc/chromium/src/base/logging.h
+++ b/third_party/tcmalloc/chromium/src/base/logging.h
@@ -56,6 +56,10 @@
 // do logging on a best-effort basis.
 #if defined(_MSC_VER)
 #define WRITE_TO_STDERR(buf, len) WriteToStderr(buf, len);  // in port.cc
+#elif defined(__ANDROID__) || defined(ANDROID)
+#include <android/log.h>
+#define WRITE_TO_STDERR(buf, len) \
+    __android_log_write(ANDROID_LOG_ERROR, "gperftools", buf)
 #elif defined(HAVE_SYS_SYSCALL_H)
 #include <sys/syscall.h>
 #define WRITE_TO_STDERR(buf, len) syscall(SYS_write, STDERR_FILENO, buf, len)
@@ -204,7 +208,26 @@ inline void LogPrintf(int severity, const char* pat, va_list ap) {
     assert(strlen(buf)+1 < sizeof(buf));
     strcat(buf, "\n");
   }
+#if defined(__ANDROID__) || defined(ANDROID)
+  android_LogPriority priority = ANDROID_LOG_UNKNOWN;
+  switch (severity) {
+  case INFO:

[willchan no longer on Chromium, 2013/05/07 14:45:36]

Indentation is off. Please follow the format in
http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=Loops_....
In particular, case needs to be indented 2 spaces.

[Dai Mikurube (NOT FULLTIME), 2013/05/07 17:10:15]

Done.

+    priority = ANDROID_LOG_INFO;
+    break;
+  case WARNING:
+    priority = ANDROID_LOG_WARN;
+    break;
+  case ERROR:
+    priority = ANDROID_LOG_ERROR;
+    break;
+  case FATAL:
+    priority = ANDROID_LOG_FATAL;
+    break;
+  }
+  __android_log_write(priority, "gperftools", buf);
+#else  // defined(__ANDROID__) || defined(ANDROID)
   WRITE_TO_STDERR(buf, strlen(buf));
+#endif  // defined(__ANDROID__) || defined(ANDROID)
   if ((severity) == FATAL) {
     // LOG(FATAL) indicates a big problem, so don't run atexit() calls
     tcmalloc::Abort();