Move Partition Allocator into Chromium base.

third_party/WebKit/Source/wtf/Allocator.h

Index: third_party/WebKit/Source/wtf/Allocator.h
diff --git a/third_party/WebKit/Source/wtf/Allocator.h b/third_party/WebKit/Source/wtf/Allocator.h
index c87ccaafdf3aa60b4e3b462b92382dede7de72c9..5aacf776cee91fdc08040ce0a390330840d003ab 100644
--- a/third_party/WebKit/Source/wtf/Allocator.h
+++ b/third_party/WebKit/Source/wtf/Allocator.h
@@ -118,13 +118,21 @@ namespace WTF {
                                                                       \
   void operator delete[](void* p) { ::WTF::Partitions::fastFree(p); } \
   void* operator new(size_t, NotNullTag, void* location) {            \
-    ASSERT(location);                                                 \
+    DCHECK(location);                                                 \
     return location;                                                  \
   }                                                                   \
                                                                       \
  private:                                                             \
   typedef int __thisIsHereToForceASemicolonAfterThisMacro
 
+// In official builds, do not include type info string literals to avoid
+// bloating the binary.
+#if defined(OFFICIAL_BUILD)
+#define WTF_HEAP_PROFILER_TYPE_NAME(T) nullptr
+#else
+#define WTF_HEAP_PROFILER_TYPE_NAME(T) ::WTF::getStringWithTypeName<T>()
+#endif
+
 // Both of these macros enable fast malloc and provide type info to the heap
 // profiler. The regular macro does not provide type info in official builds,
 // to avoid bloating the binary with type name strings. The |WITH_TYPE_NAME|