Revert "Implement in-heap backing store for typed arrays."

src/heap.h

Index: src/heap.h
diff --git a/src/heap.h b/src/heap.h
index 084729874fb55ce306e1ae41a4e5c836e8f81781..fec6f54c541e6df37fa6a336ba63ed7439298821 100644
--- a/src/heap.h
+++ b/src/heap.h
@@ -156,15 +156,6 @@ namespace internal {
   V(ExternalArray, empty_external_double_array, EmptyExternalDoubleArray)      \
   V(ExternalArray, empty_external_pixel_array,                                 \
       EmptyExternalPixelArray)                                                 \
-  V(Map, fixed_uint8_array_map, FixedUint8ArrayMap)                            \
-  V(Map, fixed_int8_array_map, FixedInt8ArrayMap)                              \
-  V(Map, fixed_uint16_array_map, FixedUint16ArrayMap)                          \
-  V(Map, fixed_int16_array_map, FixedInt16ArrayMap)                            \
-  V(Map, fixed_uint32_array_map, FixedUint32ArrayMap)                          \
-  V(Map, fixed_int32_array_map, FixedInt32ArrayMap)                            \
-  V(Map, fixed_float32_array_map, FixedFloat32ArrayMap)                        \
-  V(Map, fixed_float64_array_map, FixedFloat64ArrayMap)                        \
-  V(Map, fixed_uint8_clamped_array_map, FixedUint8ClampedArrayMap)             \
   V(Map, non_strict_arguments_elements_map, NonStrictArgumentsElementsMap)     \
   V(Map, function_context_map, FunctionContextMap)                             \
   V(Map, catch_context_map, CatchContextMap)                                   \
@@ -884,15 +875,6 @@ class Heap {
       void* external_pointer,
       PretenureFlag pretenure);
 
-  // Allocates a fixed typed array of the specified length and type.
-  // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
-  // failed.
-  // Please note this does not perform a garbage collection.
-  MUST_USE_RESULT MaybeObject* AllocateFixedTypedArray(
-      int length,
-      ExternalArrayType array_type,
-      PretenureFlag pretenure);
-
   // Allocate a symbol in old space.
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed.
@@ -1579,10 +1561,6 @@ class Heap {
   MUST_USE_RESULT MaybeObject* Uint32ToString(
       uint32_t value, bool check_number_string_cache = true);
 
-  Map* MapForFixedTypedArray(ExternalArrayType array_type);
-  RootListIndex RootIndexForFixedTypedArray(
-      ExternalArrayType array_type);
-
   Map* MapForExternalArrayType(ExternalArrayType array_type);
   RootListIndex RootIndexForExternalArrayType(
       ExternalArrayType array_type);
@@ -1865,9 +1843,6 @@ class Heap {
 
   void EnsureWeakObjectToCodeTable();
 
-  static void FatalProcessOutOfMemory(const char* location,
-                                      bool take_snapshot = false);
-
  private:
   Heap();