Disable flaky test org.chromium.chrome.browser.tabmodel.DocumentModeAssassinTest#testFullMigration

chrome/android/javatests/src/org/chromium/chrome/browser/tabmodel/DocumentModeAssassinTest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/tabmodel/DocumentModeAssassinTest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/tabmodel/DocumentModeAssassinTest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/tabmodel/DocumentModeAssassinTest.java
index ead2316a213420bd5deb926fee4644b16353998e..a5a3b43dc31f6684da44c3a698bc9a8d9b111cf8 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/tabmodel/DocumentModeAssassinTest.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/tabmodel/DocumentModeAssassinTest.java
@@ -16,6 +16,7 @@ import org.chromium.base.StreamUtil;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.test.util.AdvancedMockContext;
 import org.chromium.base.test.util.CallbackHelper;
+import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.chrome.browser.TabState;
 import org.chromium.chrome.browser.tab.Tab;
@@ -179,7 +180,9 @@ public class DocumentModeAssassinTest extends NativeLibraryTestBase {
     }
 
     /** Tests the full pathway. */
-    @MediumTest
+    // Flaky, see http://crbug/666815.
+    // @MediumTest
+    @DisabledTest
     public void testFullMigration() throws Exception {
         final CallbackHelper copyStartedCallback = new CallbackHelper();
         final CallbackHelper copyCallback = new CallbackHelper();