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/imgdiag/imgdiag_test.cc b/imgdiag/imgdiag_test.cc
index 9f771ba..3f2afc0 100644
--- a/imgdiag/imgdiag_test.cc
+++ b/imgdiag/imgdiag_test.cc
@@ -20,12 +20,13 @@
 
 #include "common_runtime_test.h"
 
+#include "android-base/stringprintf.h"
+
 #include "runtime/os.h"
 #include "runtime/arch/instruction_set.h"
 #include "runtime/utils.h"
 #include "runtime/gc/space/image_space.h"
 #include "runtime/gc/heap.h"
-#include "base/stringprintf.h"
 
 #include <sys/types.h>
 #include <unistd.h>
@@ -57,7 +58,7 @@
 
   virtual void SetUpRuntimeOptions(RuntimeOptions* options) OVERRIDE {
     // Needs to live until CommonRuntimeTest::SetUp finishes, since we pass it a cstring.
-    runtime_args_image_ = StringPrintf("-Ximage:%s", GetCoreArtLocation().c_str());
+    runtime_args_image_ = android::base::StringPrintf("-Ximage:%s", GetCoreArtLocation().c_str());
     options->push_back(std::make_pair(runtime_args_image_, nullptr));
   }