Only build 'compiler' (ie dartc) when running chromium tests.

client/tools/buildbot_annotated_steps.py

 # Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 #!/usr/bin/python
 
 # Copyright (c) 2011 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.
 
@@ skipping 58 matching lines @@
     if pipe.returncode == 0:
       version = output[0]
     else:
       version = 'unknown'
   return (name, version, component, mode, platform)
 
 
 def RunDartcCompiler(mode, outdir):
   """Compiles the client code to javascript for dartc tests."""
   return subprocess.call(
-      [sys.executable, './tools/build.py', '--mode=' + mode])
+      [sys.executable, './tools/build.py', '--mode=' + mode, 'compiler'])
 
 def RunBrowserTests(component, mode, platform):
   """Runs the Dart client tests."""
   if platform == 'linux':
     cmd = ['xvfb-run']
   else:
     cmd = []
   cmd += [sys.executable, './tools/test.py',
      '--component=' + component, '--mode=' + mode,
      '--time', '--report', '--progress=buildbot', '-v']
@@ skipping 106 matching lines @@
     status = ProcessDartClientTests(component, mode, platform, name)
 
   if status:
     print '@@@STEP_FAILURE@@@'
 
   return status
 
 
 if __name__ == '__main__':
   sys.exit(main())