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

src/s390/simulator-s390.cc

Index: src/s390/simulator-s390.cc
diff --git a/src/s390/simulator-s390.cc b/src/s390/simulator-s390.cc
index 91db78226b23f82fc7ee20546ccfb60a0ddd2f1a..78bc9398429a6634fd331793150a3d02fa98864d 100644
--- a/src/s390/simulator-s390.cc
+++ b/src/s390/simulator-s390.cc
@@ -660,8 +660,8 @@ void Simulator::set_last_debugger_input(char* input) {
   last_debugger_input_ = input;
 }
 
-void Simulator::FlushICache(base::HashMap* i_cache, void* start_addr,
-                            size_t size) {
+void Simulator::FlushICache(base::CustomMatcherHashMap* i_cache,
+                            void* start_addr, size_t size) {
   intptr_t start = reinterpret_cast<intptr_t>(start_addr);
   int intra_line = (start & CachePage::kLineMask);
   start -= intra_line;
@@ -681,7 +681,8 @@ void Simulator::FlushICache(base::HashMap* i_cache, void* start_addr,
   }
 }
 
-CachePage* Simulator::GetCachePage(base::HashMap* i_cache, void* page) {
+CachePage* Simulator::GetCachePage(base::CustomMatcherHashMap* i_cache,
+                                   void* page) {
   base::HashMap::Entry* entry = i_cache->LookupOrInsert(page, ICacheHash(page));
   if (entry->value == NULL) {
     CachePage* new_page = new CachePage();
@@ -691,7 +692,8 @@ CachePage* Simulator::GetCachePage(base::HashMap* i_cache, void* page) {
 }
 
 // Flush from start up to and not including start + size.
-void Simulator::FlushOnePage(base::HashMap* i_cache, intptr_t start, int size) {
+void Simulator::FlushOnePage(base::CustomMatcherHashMap* i_cache,
+                             intptr_t start, int size) {
   DCHECK(size <= CachePage::kPageSize);
   DCHECK(AllOnOnePage(start, size - 1));
   DCHECK((start & CachePage::kLineMask) == 0);
@@ -703,7 +705,8 @@ void Simulator::FlushOnePage(base::HashMap* i_cache, intptr_t start, int size) {
   memset(valid_bytemap, CachePage::LINE_INVALID, size >> CachePage::kLineShift);
 }
 
-void Simulator::CheckICache(base::HashMap* i_cache, Instruction* instr) {
+void Simulator::CheckICache(base::CustomMatcherHashMap* i_cache,
+                            Instruction* instr) {
   intptr_t address = reinterpret_cast<intptr_t>(instr);
   void* page = reinterpret_cast<void*>(address & (~CachePage::kPageMask));
   void* line = reinterpret_cast<void*>(address & (~CachePage::kLineMask));
@@ -1469,7 +1472,7 @@ void Simulator::EvalTableInit() {
 Simulator::Simulator(Isolate* isolate) : isolate_(isolate) {
   i_cache_ = isolate_->simulator_i_cache();
   if (i_cache_ == NULL) {
-    i_cache_ = new base::HashMap(&ICacheMatch);
+    i_cache_ = new base::CustomMatcherHashMap(&ICacheMatch);
     isolate_->set_simulator_i_cache(i_cache_);
   }
   Initialize(isolate);
@@ -1609,7 +1612,8 @@ class Redirection {
 };
 
 // static
-void Simulator::TearDown(base::HashMap* i_cache, Redirection* first) {
+void Simulator::TearDown(base::CustomMatcherHashMap* i_cache,
+                         Redirection* first) {
   Redirection::DeleteChain(first);
   if (i_cache != nullptr) {
     for (base::HashMap::Entry* entry = i_cache->Start(); entry != nullptr;