Reland "[presubmit] Include test/common and test/fuzzer in cpplint"

This is a reland of 6daf3c77
Original change's description:
> [presubmit] Include test/common and test/fuzzer in cpplint
> 
> These directories probably just did not exist when the cpplint paths
> were defined.
> 
> R=machenbach@chromium.org
> CC=mstarzinger@chromium.org
> 
> Change-Id: Ia6b641b3c106d86ceafb0c70b44ca241b4c80642
> Reviewed-on: https://chromium-review.googlesource.com/647807
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#47786}

Change-Id: I15cd1b508cd3c6f5cd58cd5c5129174d8ced40d0
Reviewed-on: https://chromium-review.googlesource.com/649006Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47796}

tools/presubmit.py

@@ -227,8 +227,9 @@ class CppLintProcessor(SourceFileProcessor):
               or (name in CppLintProcessor.IGNORE_LINT))
 
   def GetPathsToSearch(self):
-    return ['src', 'include', 'samples', join('test', 'cctest'),
-            join('test', 'unittests'), join('test', 'inspector')]
+    dirs = ['include', 'samples', 'src']
+    test_dirs = ['cctest', 'common', 'fuzzer', 'inspector', 'unittests']
+    return dirs + [join('test', dir) for dir in test_dirs]
 
   def GetCpplintScript(self, prio_path):
     for path in [prio_path] + os.environ["PATH"].split(os.pathsep):