crash_reporter: Fix tmp directory location

It is unsafe to use /data/local/tmp.  Use our own temporary
directory under /data/misc/crash_reporter.

Bug: 23430484
Change-Id: I186ba6b146bd884064177a3bb29b18b8edcc0b62

init.crash_reporter.rc

diff --git a/init.crash_reporter.rc b/init.crash_reporter.rc
index f65371a..6882b77 100644
--- a/init.crash_reporter.rc
+++ b/init.crash_reporter.rc
@@ -12,7 +12,6 @@
 
     # Create crash directories.
     mkdir /data/misc/crash_reporter 0700 root root
-    mkdir /data/local/tmp/crash_reporter 0700 root root
 
 service crash_reporter /system/bin/crash_reporter --init
     class late_start

user_collector.cc

diff --git a/user_collector.cc b/user_collector.cc
index 6bf9120..416c1df 100644
--- a/user_collector.cc
+++ b/user_collector.cc
@@ -33,7 +33,7 @@
 
 static const char kStatePrefix[] = "State:\t";
 
-static const char kCoreTempFolder[] = "/data/local/tmp/crash_reporter";
+static const char kCoreTempFolder[] = "/data/misc/crash_reporter/tmp";
 
 // Define an otherwise invalid value that represents an unknown UID.
 static const uid_t kUnknownUid = -1;