Temporary commit to evaluate perf impact of prototype CPU profiler

base/BUILD.gn

 # Copyright (c) 2013 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/ui.gni")
 import("//testing/test.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
@@ skipping 499 matching lines @@
     "process/process_metrics_ios.cc",
     "process/process_metrics_linux.cc",
     "process/process_metrics_mac.cc",
     "process/process_metrics_openbsd.cc",
     "process/process_metrics_posix.cc",
     "process/process_metrics_win.cc",
     "process/process_posix.cc",
     "process/process_win.cc",
     "profiler/alternate_timer.cc",
     "profiler/alternate_timer.h",
+    "profiler/cpu_profiler.cc",
+    "profiler/cpu_profiler.h",
+    "profiler/cpu_profiler_posix.cc",
+    "profiler/cpu_profiler_win.cc",
     "profiler/scoped_profile.cc",
     "profiler/scoped_profile.h",
     "profiler/scoped_tracker.cc",
     "profiler/scoped_tracker.h",
     "profiler/tracked_time.cc",
     "profiler/tracked_time.h",
     "rand_util.cc",
     "rand_util.h",
     "rand_util_nacl.cc",
     "rand_util_posix.cc",
@@ skipping 1001 matching lines @@
 
   # GYP: //base.gyp:base_java_unittest_support
   android_library("base_java_unittest_support") {
     deps = [
       ":base_java",
     ]
     java_files =
         [ "test/android/java/src/org/chromium/base/ContentUriTestUtils.java" ]
   }
 }