Move hashmap into base/.

src/heap/mark-compact.cc

Index: src/heap/mark-compact.cc
diff --git a/src/heap/mark-compact.cc b/src/heap/mark-compact.cc
index 5c2c012f04f7d32386eb085405d1185a8e8e9df0..6f3227a813909989ac3647e9d1ba8f386561c09d 100644
--- a/src/heap/mark-compact.cc
+++ b/src/heap/mark-compact.cc
@@ -1736,7 +1736,7 @@ class MarkCompactCollector::EvacuateNewSpaceVisitor final
 
   explicit EvacuateNewSpaceVisitor(Heap* heap,
                                    CompactionSpaceCollection* compaction_spaces,
-                                   HashMap* local_pretenuring_feedback)
+                                   base::HashMap* local_pretenuring_feedback)
       : EvacuateVisitorBase(heap, compaction_spaces),
         buffer_(LocalAllocationBuffer::InvalidBuffer()),
         space_to_allocate_(NEW_SPACE),
@@ -1865,7 +1865,7 @@ class MarkCompactCollector::EvacuateNewSpaceVisitor final
   AllocationSpace space_to_allocate_;
   intptr_t promoted_size_;
   intptr_t semispace_copied_size_;
-  HashMap* local_pretenuring_feedback_;
+  base::HashMap* local_pretenuring_feedback_;
 };
 
 class MarkCompactCollector::EvacuateNewSpacePageVisitor final
@@ -3053,7 +3053,7 @@ class MarkCompactCollector::Evacuator : public Malloced {
   explicit Evacuator(MarkCompactCollector* collector)
       : collector_(collector),
         compaction_spaces_(collector->heap()),
-        local_pretenuring_feedback_(HashMap::PointersMatch,
+        local_pretenuring_feedback_(base::HashMap::PointersMatch,
                                     kInitialLocalPretenuringFeedbackCapacity),
         new_space_visitor_(collector->heap(), &compaction_spaces_,
                            &local_pretenuring_feedback_),
@@ -3102,7 +3102,7 @@ class MarkCompactCollector::Evacuator : public Malloced {
 
   // Locally cached collector data.
   CompactionSpaceCollection compaction_spaces_;
-  HashMap local_pretenuring_feedback_;
+  base::HashMap local_pretenuring_feedback_;
 
   // Visitors for the corresponding spaces.
   EvacuateNewSpaceVisitor new_space_visitor_;