SCons: Update lib/benchmark sources

lib/benchmark/SConscript

@@ -15,21 +15,24 @@ if build.compiler_is_clang:
 
 # Sources used by base library and library that includes main.
 sources = [
+  "src/benchmark_api_internal.cc",
+  "src/benchmark_name.cc",
+  "src/benchmark_register.cc",
+  "src/benchmark_runner.cc",
   "src/benchmark.cc",
   "src/colorprint.cc",
   "src/commandlineflags.cc",
+  "src/complexity.cc",
   "src/console_reporter.cc",
+  "src/counter.cc",
   "src/csv_reporter.cc",
   "src/json_reporter.cc",
-  "src/log.cc",
   "src/reporter.cc",
   "src/sleep.cc",
+  "src/statistics.cc",
   "src/string_util.cc",
   "src/sysinfo.cc",
-  "src/walltime.cc",
-
-  # NOTE(rryan): Since we're using C++11 we can use std::regex.
-  "src/re_std.cc"
+  "src/timers.cc"
 ]
 
 benchmark_lib = env.StaticLibrary(target='benchmark',