disable SitePerProcessBrowserTest.NestedFrameViewportIntersectionUpdated on android

It is flaky.

TBR=kenrb@chromium.org

Bug: 869758
Change-Id: I6ac4db8ae505c3b40a3b3ce486833b82a0737ad9
Reviewed-on: https://chromium-review.googlesource.com/1158583Reviewed-by: Christos Froussios <cfroussios@chromium.org>
Commit-Queue: Christos Froussios <cfroussios@chromium.org>
Cr-Commit-Position: refs/heads/master@{#579799}

content/browser/site_per_process_browsertest.cc

@@ -12055,8 +12055,16 @@ IN_PROC_BROWSER_TEST_F(SitePerProcessBrowserTest,
 
 // Test to verify that viewport intersection is propagated to nested OOPIFs
 // even when a parent OOPIF has been throttled.
+// TODO(crbug.com/869758) The test is flaky on android
+#if defined(OS_ANDROID)
+#define MAYBE_NestedFrameViewportIntersectionUpdated \
+  DISABLED_NestedFrameViewportIntersectionUpdated
+#else
+#define MAYBE_NestedFrameViewportIntersectionUpdated \
+  NestedFrameViewportIntersectionUpdated
+#endif
 IN_PROC_BROWSER_TEST_F(SitePerProcessBrowserTest,
-                       NestedFrameViewportIntersectionUpdated) {
+                       MAYBE_NestedFrameViewportIntersectionUpdated) {
   GURL main_url(embedded_test_server()->GetURL(
       "foo.com", "/frame_tree/scrollable_page_with_positioned_frame.html"));
   EXPECT_TRUE(NavigateToURL(shell(), main_url));