Replace deprecated scoped_array<T> with scoped_ptr<T[]>

BUG=chromium:338610
TEST=Build and run unit tests.

Change-Id: I782cd5ddb0a112a51fca1972faba47b9ed2f7690
Reviewed-on: https://chromium-review.googlesource.com/184069
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Ben Chan <benchan@chromium.org>
Tested-by: Ben Chan <benchan@chromium.org>
diff --git a/crash_reporter/crash_collector.cc b/crash_reporter/crash_collector.cc
index d39d6f4..f364015 100644
--- a/crash_reporter/crash_collector.cc
+++ b/crash_reporter/crash_collector.cc
@@ -316,9 +316,9 @@
 }
 
 bool CrashCollector::GetSymlinkTarget(const FilePath &symlink,
-                                     FilePath *target) {
+                                      FilePath *target) {
   int max_size = 32;
-  scoped_array<char> buffer;
+  scoped_ptr<char[]> buffer;
   while (true) {
     buffer.reset(new char[max_size + 1]);
     ssize_t size = readlink(symlink.value().c_str(), buffer.get(), max_size);