Replace chrome string util with android base ones

Replaces <base/stringutils.h> with <android-base/stringutils.h>
Replaces base::StringPrintf with android::base::StringPrintf

This change is very mechanical, no change in program behavior only
library functions are being replaced.

Test: th
Change-Id: Ie5797a27ea3cdd3ff537216dc39dffeac052565e
diff --git a/payload_generator/extent_utils.cc b/payload_generator/extent_utils.cc
index d318fd2..782f95b 100644
--- a/payload_generator/extent_utils.cc
+++ b/payload_generator/extent_utils.cc
@@ -23,8 +23,8 @@
 #include <vector>
 
 #include <base/logging.h>
-#include <android-base/macros.h>
-#include <base/strings/stringprintf.h>
+#include <base/macros.h>
+#include <android-base/stringprintf.h>
 
 #include "update_engine/payload_consumer/payload_constants.h"
 #include "update_engine/payload_generator/extent_ranges.h"
@@ -90,9 +90,10 @@
 string ExtentsToStringTemplate(const Container& extents) {
   string ext_str;
   for (const Extent& e : extents)
-    ext_str += base::StringPrintf("[%" PRIu64 ", %" PRIu64 "] ",
-                                  static_cast<uint64_t>(e.start_block()),
-                                  static_cast<uint64_t>(e.num_blocks()));
+    ext_str +=
+        android::base::StringPrintf("[%" PRIu64 ", %" PRIu64 "] ",
+                                    static_cast<uint64_t>(e.start_block()),
+                                    static_cast<uint64_t>(e.num_blocks()));
   return ext_str;
 }