ART: Move to libbase StringPrintf

Remove ART's StringPrintf implementation. Fix up clients. Add
missing includes where necessary.

Test: m test-art-host
Change-Id: I564038d5868595ac3bb88d641af1000cea940e5a
diff --git a/runtime/base/time_utils.cc b/runtime/base/time_utils.cc
index 57f198d..3c09d5a 100644
--- a/runtime/base/time_utils.cc
+++ b/runtime/base/time_utils.cc
@@ -20,8 +20,9 @@
 
 #include "time_utils.h"
 
+#include "android-base/stringprintf.h"
+
 #include "base/logging.h"
-#include "base/stringprintf.h"
 
 #if defined(__APPLE__)
 #include <sys/time.h>
@@ -29,6 +30,8 @@
 
 namespace art {
 
+using android::base::StringPrintf;
+
 std::string PrettyDuration(uint64_t nano_duration, size_t max_fraction_digits) {
   if (nano_duration == 0) {
     return "0";