Un-exclude a few non-Mac tests to check if any of them still hang

TBR=bruening
BUG=163314
NOTRY=true

Review URL: https://codereview.chromium.org/15924008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@202844 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/gtest_exclude/ash_unittests.gtest.txt

-# Hangs that should go away with a new sharding framework, according to maruel@.
-LauncherViewTest.*
-
 # crbug.com/234854
 PanelLayoutManagerTest.PanelAlignmentSecondDisplay 

tools/valgrind/gtest_exclude/content_unittests.gtest.txt

-# http://crbug.com/163314
-IndexedDBTest.*
-
 # Flaky, see http://crbug.com/227278
 WebContentsVideoCaptureDeviceTest.WebContentsDestroyed
 CompositingIOSurfaceTransformerTest.*