Fix temp dir path for Android.

base/file_util_android.cc

Index: base/file_util_android.cc
diff --git a/base/file_util_android.cc b/base/file_util_android.cc
index 6807d8d504a109e744578b26ad0f9a2294b1f4c3..bd3e836ff7bca51139d264e96ea6a539e6d11865 100644
--- a/base/file_util_android.cc
+++ b/base/file_util_android.cc
@@ -5,12 +5,12 @@
 #include "base/file_util.h"
 
 #include "base/file_path.h"
+#include "base/path_service.h"
 
 namespace file_util {
 
 bool GetShmemTempDir(FilePath* path, bool executable) {
-  *path = FilePath("/data/local/tmp");
-  return true;
+  return PathService::Get(base::DIR_CACHE, path);
 }
 
 }  // namespace file_util