update_engine: Run clang-format on payload_consumer

We just did a AOSP merge, so it is a good time to clean things up.

BUG=none
TEST=unittest

Change-Id: I4fe9cef5eb8709344d6b78bc298c0f1c03308ffc
Reviewed-on: https://chromium-review.googlesource.com/1407540
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Sen Jiang <senj@chromium.org>
Reviewed-by: Xiaochu Liu <xiaochu@chromium.org>
diff --git a/payload_consumer/extent_reader.cc b/payload_consumer/extent_reader.cc
index 96ea918..ad983ae 100644
--- a/payload_consumer/extent_reader.cc
+++ b/payload_consumer/extent_reader.cc
@@ -16,6 +16,8 @@
 
 #include "update_engine/payload_consumer/extent_reader.h"
 
+#include <algorithm>
+
 #include <sys/types.h>
 #include <unistd.h>
 
@@ -52,8 +54,9 @@
   }
   // The first item is zero and upper_bound never returns it because it always
   // return the item which is greater than the given value.
-  auto extent_idx = std::upper_bound(
-      extents_upper_bounds_.begin(), extents_upper_bounds_.end(), offset) -
+  auto extent_idx =
+      std::upper_bound(
+          extents_upper_bounds_.begin(), extents_upper_bounds_.end(), offset) -
       extents_upper_bounds_.begin() - 1;
   cur_extent_ = std::next(extents_.begin(), extent_idx);
   offset_ = offset;