Build & run unit tests on Aura (Rebase)

Applied patch from http://codereview.chromium.org/8665006/


BUG=none
TEST=duh
TBR=ben@chromium.org

Review URL: http://codereview.chromium.org/8677014

git-svn-id: http://src.chromium.org/svn/trunk/src/build@111403 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

all.gyp

@@ -606,6 +606,7 @@
           'type': 'none',
           'dependencies': [
             '../chrome/chrome.gyp:chrome',
+            '../chrome/chrome.gyp:unit_tests',
             '../ui/aura_shell/aura_shell.gyp:aura_shell_exe',
             '../ui/aura_shell/aura_shell.gyp:aura_shell_unittests',
             '../ui/aura/aura.gyp:*',
@@ -629,10 +630,9 @@
               ],
             }],
             ['OS=="linux"', {
-              # Aura unit_tests currently only work on Linux.
+              # Tests that currently only work on Linux.
               'dependencies': [
                 '../chrome/chrome.gyp:sync_unit_tests',
-                '../chrome/chrome.gyp:unit_tests',
                 '../content/content.gyp:content_unittests',
                 '../ipc/ipc.gyp:ipc_tests',
                 '../sql/sql.gyp:sql_unittests',