Update to Chromium //base at Chromium commit 3e81715e6d3a4324362635aea46ce1f1a163cca1.

test/test_switches.cc

Index: test/test_switches.cc
diff --git a/test/test_switches.cc b/test/test_switches.cc
index 84aa53c474d8ba1ab60657bad0c25444cda3c9ed..40f20d7b7dbebdfa66fa9acc9aee4fba1578ab23 100644
--- a/test/test_switches.cc
+++ b/test/test_switches.cc
@@ -18,6 +18,11 @@ const char switches::kTestLauncherBotMode[] =
 const char switches::kTestLauncherDebugLauncher[] =
     "test-launcher-debug-launcher";
 
+// Force running all requested tests and retries even if too many test errors
+// occur.
+const char switches::kTestLauncherForceRunBrokenTests[] =
+    "test-launcher-force-run-broken-tests";
+
 // Path to file containing test filter (one pattern per line).
 const char switches::kTestLauncherFilterFile[] = "test-launcher-filter-file";