[base] Remove PointersMatch, making a separate std::equals hashmap

src/arm64/simulator-arm64.cc

Index: src/arm64/simulator-arm64.cc
diff --git a/src/arm64/simulator-arm64.cc b/src/arm64/simulator-arm64.cc
index f5595a8ed12b139f36017bab2c70b1ecb3f46bef..83b4cf7ee8954f0838a8389eb3a5c971558eb5a2 100644
--- a/src/arm64/simulator-arm64.cc
+++ b/src/arm64/simulator-arm64.cc
@@ -524,7 +524,8 @@ class Redirection {
 
 
 // static
-void Simulator::TearDown(base::HashMap* i_cache, Redirection* first) {
+void Simulator::TearDown(base::CustomMatcherHashMap* i_cache,
+                         Redirection* first) {
   Redirection::DeleteChain(first);
 }