Disable flaky RestoreHistogramTest testWritingHistogramAtStartup.

Relanding to fix compiler error.

TBR=tedchoc@chromium.org
NOTRY=true (disabling a test)

Bug: 875372
Change-Id: Idc4c7863dd6e8e1d97ec974c2b8dff3fd09d91f1
Reviewed-on: https://chromium-review.googlesource.com/1180268
Commit-Queue: apacible <apacible@chromium.org>
Reviewed-by: apacible <apacible@chromium.org>
Cr-Commit-Position: refs/heads/master@{#584171}

chrome/android/javatests/src/org/chromium/chrome/browser/RestoreHistogramTest.java

@@ -18,6 +18,7 @@ import org.chromium.base.library_loader.LibraryLoader;
 import org.chromium.base.library_loader.LibraryProcessType;
 import org.chromium.base.library_loader.ProcessInitException;
 import org.chromium.base.test.util.CommandLineFlags;
+import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.MetricsUtils;
 import org.chromium.chrome.test.ChromeJUnit4ClassRunner;
 import org.chromium.chrome.test.ChromeTabbedActivityTestRule;
@@ -97,6 +98,7 @@ public class RestoreHistogramTest {
      * @throws ProcessInitException
      */
     @Test
+    @DisabledTest(message = "Test is flaky. crbug.com/875372")
     @SmallTest
     public void testWritingHistogramAtStartup() throws InterruptedException, ProcessInitException {
         LibraryLoader.getInstance().ensureInitialized(LibraryProcessType.PROCESS_BROWSER);