Disable ForceMaximizeOnFirstRunTest.PRE_TwoRuns on ChromeOs

TBR=maxmorin@chromium.org
NOTRY=true

Bug: 919100
Change-Id: Ie218eb7ea89b447c9f53d303b5d0d73ed9a9b4c3
Reviewed-on: https://chromium-review.googlesource.com/c/1396226Reviewed-by: Xida Chen <xidachen@chromium.org>
Commit-Queue: Xida Chen <xidachen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#619958}

chrome/browser/chromeos/policy/force_maximize_on_first_run_chromeos_browsertest.cc

@@ -53,7 +53,7 @@ class ForceMaximizeOnFirstRunTest : public LoginPolicyTestBase {
   DISALLOW_COPY_AND_ASSIGN(ForceMaximizeOnFirstRunTest);
 };
 
-IN_PROC_BROWSER_TEST_F(ForceMaximizeOnFirstRunTest, PRE_TwoRuns) {
+IN_PROC_BROWSER_TEST_F(ForceMaximizeOnFirstRunTest, DISABLED_PRE_TwoRuns) {
   SetUpResolution();
   SkipToLoginScreen();
   LogIn(kAccountId, kAccountPassword, kEmptyServices);