Roll base/allocator/partition_allocator/ 72b7e1a3f..42bf756b3 (38 commits)

https://chromium.googlesource.com/chromium/src/base/allocator/partition_allocator.git/+log/72b7e1a3fb42..42bf756b3176

Created with:
  roll-dep base/allocator/partition_allocator

Change-Id: I2472923d8a3afffb8c1e3b5bef1bd935dbfbd224
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/116030
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Alan Screen <awscreen@chromium.org>
diff --git a/DEPS b/DEPS
index 6e8e02e..1a431ad 100644
--- a/DEPS
+++ b/DEPS
@@ -174,7 +174,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling partition_allocator
   # and whatever else without interference from each other.
-  'partition_allocator_revision': '72b7e1a3fb42281f5ef11691656d759646651468',
+  'partition_allocator_revision': '42bf756b317639d84e86d1cd02a8ef44b495a9a1',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling pdfium_tests
   # and whatever else without interference from each other.