Disable tests in ContextMenuTest

This disables a couple of flaky tests in
org.chromium.chrome.browser.contextmenu.ContextMenuTest:

 - testContextMenuRetrievesVideoOptions
 - testSaveVideo

[email protected]

Bug: 947695
Change-Id: I432f457aeba58b94be4e7a554e63d27e2fd821dc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1546806
Reviewed-by: Makoto Shimazu <[email protected]>
Commit-Queue: Makoto Shimazu <[email protected]>
Cr-Commit-Position: refs/heads/master@{#646202}

chrome/android/javatests/src/org/chromium/chrome/browser/contextmenu/ContextMenuTest.java

@@ -24,6 +24,7 @@
 
 import org.chromium.base.test.util.CallbackHelper;
 import org.chromium.base.test.util.CommandLineFlags;
+import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.FlakyTest;
 import org.chromium.base.test.util.RetryOnFailure;
@@ -284,6 +285,7 @@ public void testSaveImage()
     @LargeTest
     @Feature({"Browser"})
     @RetryOnFailure
+    @DisabledTest(message = "https://crbug.com/947695")
     public void testSaveVideo()
             throws InterruptedException, TimeoutException, SecurityException, IOException {
         // Click the video to enable playback
@@ -419,6 +421,7 @@ public void testContextMenuRetrievesImageLinkOptions()
     @SmallTest
     @Feature({"Browser", "ContextMenu"})
     @RetryOnFailure
+    @DisabledTest(message = "https://crbug.com/947695")
     public void testContextMenuRetrievesVideoOptions()
             throws TimeoutException, InterruptedException {
         Tab tab = mDownloadTestRule.getActivity().getActivityTab();