Separate module min memory pages counter for asm.js/WASM.

src/counters.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COUNTERS_H_
 #define V8_COUNTERS_H_
 
 #include "include/v8.h"
 #include "src/allocation.h"
 #include "src/base/atomic-utils.h"
@@ skipping 999 matching lines @@
   HM(heap_sample_code_space_committed, V8.MemoryHeapSampleCodeSpaceCommitted) \
   HM(heap_sample_maximum_committed, V8.MemoryHeapSampleMaximumCommitted)
 
 #define HISTOGRAM_MEMORY_LIST(HM)                                              \
   HM(memory_heap_committed, V8.MemoryHeapCommitted)                            \
   HM(memory_heap_used, V8.MemoryHeapUsed)                                      \
   /* Asm/Wasm */                                                               \
   HM(wasm_decode_module_peak_memory_bytes, V8.WasmDecodeModulePeakMemoryBytes) \
   HM(wasm_compile_function_peak_memory_bytes,                                  \
      V8.WasmCompileFunctionPeakMemoryBytes)                                    \
-  HM(wasm_min_mem_pages_count, V8.WasmMinMemPagesCount)                        \
+  /* TODO(karlschimpf) Update chrome flags to reflect asm/wasm split. */       \
+  HM(wasm_asm_min_mem_pages_count, V8.WasmMinMemPagesCount)                    \
+  HM(wasm_wasm_min_mem_pages_count, V8.WasmMinMemPagesCount)                   \
   HM(wasm_max_mem_pages_count, V8.WasmMaxMemPagesCount)                        \
   HM(wasm_function_size_bytes, V8.WasmFunctionSizeBytes)                       \
   HM(wasm_module_size_bytes, V8.WasmModuleSizeBytes)
 
 // WARNING: STATS_COUNTER_LIST_* is a very large macro that is causing MSVC
 // Intellisense to crash.  It was broken into two macros (each of length 40
 // lines) rather than one macro (of length about 80 lines) to work around
 // this problem.  Please avoid using recursive macros of this length when
 // possible.
 #define STATS_COUNTER_LIST_1(SC)                                      \
@@ skipping 301 matching lines @@
 
   explicit Counters(Isolate* isolate);
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(Counters);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COUNTERS_H_