[MemSheriff] Exclude tests that are timing out under memory tools

BUG=http://code.google.com/p/drmemory/issues/detail?id=1528
TBR=zhaoqin@chromium.org

Review URL: https://codereview.chromium.org/485513002

Cr-Commit-Position: refs/heads/master@{#290181}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@290181 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/gtest_exclude/content_browsertests.gtest-drmemory_win32.txt

@@ -12,6 +12,7 @@ IndexedDBBrowserTest.DeleteCompactsBackingStore
 MSE_ClearKey/EncryptedMediaTest.FrameSizeChangeVideo/0
 OutOfProcessPPAPITest.MediaStreamAudioTrack
 OutOfProcessPPAPITest.NetworkProxy
+OutOfProcessPPAPITest.VideoDecoder
 RenderViewImplTest.DontIgnoreBackAfterNavEntryLimit
 RenderViewImplTest.ReloadWhileSwappedOut
 RenderViewImplTest.SendSwapOutACK
@@ -21,6 +22,7 @@ ResourceFetcherTests.ResourceFetcherDidFail
 ResourceFetcherTests.ResourceFetcherDownload
 ResourceFetcherTests.ResourceFetcherPost
 ResourceFetcherTests.ResourceFetcherSetHeader
+SitePerProcessBrowserTest.CrashSubframe
 SRC_ClearKey/EncryptedMediaTest.FrameSizeChangeVideo/0
 SRC_ClearKey/EncryptedMediaTest.Playback_AudioClearVideo_WebM/0
 SRC_ClearKey/EncryptedMediaTest.Playback_VideoAudio_WebM/0