Add OPT=1 flag to build optimized on Linux.

chrome/test/unit/unit_tests.scons

 # Copyright (c) 2006-2008 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('env')
 
 env = env.Clone()
 
 env.SConscript([
     '$BASE_DIR/gfx/using_base_gfx.scons',
     '$BASE_DIR/using_base.scons',
     '$BZIP2_DIR/using_bzip2.scons',
     '$CHROME_DIR/third_party/hunspell/using_hunspell.scons',
     '$CHROME_DIR/third_party/wtl/using_wtl.scons',
     '$CHROME_SRC_DIR/build/using_googleurl.scons',
+    '$CHROME_SRC_DIR/build/using_v8.scons',
     '$DMG_FP_DIR/using_dmg_fp.scons',
     '$GTEST_DIR/../using_gtest.scons',
     '$ICU38_DIR/using_icu38.scons',
     '$LIBJPEG_DIR/using_libjpeg.scons',
     '$LIBPNG_DIR/using_libpng.scons',
     '$LIBXML_DIR/using_libxml.scons',
     '$LIBXSLT_DIR/using_libxslt.scons',
     '$MODP_B64_DIR/using_modp_b64.scons',
     '$NET_DIR/using_net.scons',
     '$SKIA_DIR/using_skia.scons',
@@ skipping 15 matching lines @@
         '$CHROME_DIR/app/resources',
         '$CHROME_SRC_DIR',
     ],
     LIBS = [
         'browser',
         'common',
         'plugin',
         'renderer',
         'sqlite',
         'util',
-        'v8_g',
         'v8_snapshot',
 
         'WTF',
         'V8Bindings',
         'default_plugin',
         'glue',
         'JavaScriptCore_pcre',
         'port',
         'WebCore',
     ],
@@ skipping 171 matching lines @@
       '$CHROME_DIR/test/data/resource.res',
   ])
 
 if env['PLATFORM'] in ('posix', 'win32'):
   # TODO(port): This should work on all platforms.
 
   unit_tests = env.ChromeTestProgram('unit_tests', unit_test_files)
 
   i = env.Install('$TARGET_ROOT', unit_tests)
   Alias('chrome', i)