Move hashmap into base/.

BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/dcheck_always_on.gni")
 import("//build/config/mips.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 
@@ skipping 1162 matching lines @@
     "src/futex-emulation.cc",
     "src/futex-emulation.h",
     "src/gdb-jit.cc",
     "src/gdb-jit.h",
     "src/global-handles.cc",
     "src/global-handles.h",
     "src/globals.h",
     "src/handles-inl.h",
     "src/handles.cc",
     "src/handles.h",
-    "src/hashmap.h",
     "src/heap-symbols.h",
     "src/heap/array-buffer-tracker.cc",
     "src/heap/array-buffer-tracker.h",
     "src/heap/gc-idle-time-handler.cc",
     "src/heap/gc-idle-time-handler.h",
     "src/heap/gc-tracer.cc",
     "src/heap/gc-tracer.h",
     "src/heap/heap-inl.h",
     "src/heap/heap.cc",
     "src/heap/heap.h",
@@ skipping 697 matching lines @@
     "src/base/cpu.cc",
     "src/base/cpu.h",
     "src/base/division-by-constant.cc",
     "src/base/division-by-constant.h",
     "src/base/file-utils.cc",
     "src/base/file-utils.h",
     "src/base/flags.h",
     "src/base/format-macros.h",
     "src/base/functional.cc",
     "src/base/functional.h",
+    "src/base/hashmap.h",
     "src/base/iterator.h",
     "src/base/lazy-instance.h",
     "src/base/logging.cc",
     "src/base/logging.h",
     "src/base/macros.h",
     "src/base/once.cc",
     "src/base/once.h",
     "src/base/platform/condition-variable.cc",
     "src/base/platform/condition-variable.h",
     "src/base/platform/elapsed-timer.h",
@@ skipping 79 matching lines @@
 
   public_configs = [ ":libplatform_config" ]
 
   deps = [
     ":v8_libbase",
   ]
 }
 
 v8_source_set("v8_libsampler") {
   sources = [
-    "src/libsampler/hashmap.h",
-    "src/libsampler/utils.h",
     "src/libsampler/v8-sampler.cc",
     "src/libsampler/v8-sampler.h",
   ]
 
   configs = [ ":internal_config_base" ]
 
   public_configs = [ ":libsampler_config" ]
 
   deps = [
     ":v8_libbase",
@@ skipping 281 matching lines @@
 
   deps = [
     ":fuzzer_support",
   ]
 
   configs = [ ":internal_config" ]
 }
 
 v8_fuzzer("wasm_asmjs_fuzzer") {
 }