Move Partition Allocator into Chromium base.

base/BUILD.gn

Index: base/BUILD.gn
diff --git a/base/BUILD.gn b/base/BUILD.gn
index 6e929147fa8e438b71da61d09e69392306979cfa..bae243270cb3fb6bdfa4c11bb53f06b11deb711a 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -1213,6 +1213,26 @@ component("base") {
       "rand_util_nacl.cc",
       "synchronization/read_write_lock_nacl.cc",
     ]
+
+    # Add stuff that doesn't work in NaCl.
+    sources += [
+      # PartitionAlloc uses SpinLock, which doesn't work in NaCl (see below).
+      "allocator/partition_allocator/address_space_randomization.cc",
+      "allocator/partition_allocator/address_space_randomization.h",
+      "allocator/partition_allocator/page_allocator.cc",
+      "allocator/partition_allocator/page_allocator.h",
+      "allocator/partition_allocator/partition_alloc.cc",
+      "allocator/partition_allocator/partition_alloc.h",
+      "allocator/partition_allocator/partition_allocator.cc",
+      "allocator/partition_allocator/partition_allocator.h",
+      "allocator/partition_allocator/partitions.cc",
+      "allocator/partition_allocator/partitions.h",
+
+      # SpinLock uses GNU-style inline assembly, which the pnacl-clang++
+      # compiler doesn't allow.
+      "synchronization/spin_lock.cc",
+      "synchronization/spin_lock.h",
+    ]
   }
 
   # Windows.