Disable flaky BackForwardCacheBrowserTest.LogIpcPostedToCachedFrame on Android

The test is flaky on some android bots, in particular
on Lollipop Phone Tester and Marshmallow Tablet Tester.

BUG=1135601
TBR=altimin@chromium.org,hbolaria@chromium.org

Change-Id: I72916ef172ecc76d6a2b92e3482314e52751c91b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2453390Reviewed-by: Tim Volodine <timvolodine@chromium.org>
Commit-Queue: Tim Volodine <timvolodine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#814277}

content/browser/back_forward_cache_browsertest.cc

@@ -2675,7 +2675,14 @@ IN_PROC_BROWSER_TEST_F(BackForwardCacheBrowserTest,
       blink::scheduler::WebSchedulerTrackedFeature::kWebRTC, FROM_HERE);
 }
 
-IN_PROC_BROWSER_TEST_F(BackForwardCacheBrowserTest, LogIpcPostedToCachedFrame) {
+// Flaky on Android, see crbug.com/1135601.
+#if defined(OS_ANDROID)
+#define MAYBE_LogIpcPostedToCachedFrame DISABLED_LogIpcPostedToCachedFrame
+#else
+#define MAYBE_LogIpcPostedToCachedFrame LogIpcPostedToCachedFrame
+#endif
+IN_PROC_BROWSER_TEST_F(BackForwardCacheBrowserTest,
+                       MAYBE_LogIpcPostedToCachedFrame) {
   ASSERT_TRUE(embedded_test_server()->Start());
 
   // 1) Navigate to a page.