Replace uses of hash_map in //base

third_party/WebKit/Source/platform/heap/BlinkGCMemoryDumpProvider.cpp

Index: third_party/WebKit/Source/platform/heap/BlinkGCMemoryDumpProvider.cpp
diff --git a/third_party/WebKit/Source/platform/heap/BlinkGCMemoryDumpProvider.cpp b/third_party/WebKit/Source/platform/heap/BlinkGCMemoryDumpProvider.cpp
index 419a412331df54cd5a17d47771ca6091deb3f357..c2dd6d1e69e83d99fdbaf63a83c26a4e0b5f4bcd 100644
--- a/third_party/WebKit/Source/platform/heap/BlinkGCMemoryDumpProvider.cpp
+++ b/third_party/WebKit/Source/platform/heap/BlinkGCMemoryDumpProvider.cpp
@@ -67,8 +67,8 @@ bool BlinkGCMemoryDumpProvider::OnMemoryDump(
   if (is_heap_profiling_enabled_) {
     // Overhead should always be reported, regardless of light vs. heavy.
     base::trace_event::TraceEventMemoryOverhead overhead;
-    base::hash_map<base::trace_event::AllocationContext,
-                   base::trace_event::AllocationMetrics>
+    std::unordered_map<base::trace_event::AllocationContext,

[Łukasz Anforowicz, 2017/04/24 18:46:10]

IWYU: #include <unordered_map>?

+                       base::trace_event::AllocationMetrics>
         metrics_by_context;
     {
       MutexLocker locker(allocation_register_mutex_);