Disable flaky ReceiverCreatedForExistingFrame.

See bug for details.

TBR=michaelbai@chromium.org, changwan@chromium.org, tobiasjs@chromium.org, jochen@chromium.org
NOTRY=True

Bug: 1010417
Change-Id: I9a68b4f29a76a1941fe42b9d741e653d9541b00e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1835499Reviewed-by: Henrik Boström <hbos@chromium.org>
Commit-Queue: Henrik Boström <hbos@chromium.org>
Cr-Commit-Position: refs/heads/master@{#701975}

components/content_capture/browser/content_capture_receiver_test.cc

@@ -9,6 +9,7 @@
 
 #include "base/strings/utf_string_conversions.h"
 #include "base/task/post_task.h"
+#include "build/build_config.h"
 #include "components/content_capture/browser/content_capture_receiver_manager.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/web_contents.h"
@@ -635,8 +636,16 @@ class ContentCaptureReceiverMultipleFrameTest
   void TearDown() override { content::RenderViewHostTestHarness::TearDown(); }
 };
 
+// TODO(https://crbug.com/1010417): Fix flakes on win10_chromium_x64_rel_ng and
+// re-enable this test.
+#if defined(OS_WIN)
+#define MAYBE_ReceiverCreatedForExistingFrame \
+  DISABLED_ReceiverCreatedForExistingFrame
+#else
+#define MAYBE_ReceiverCreatedForExistingFrame ReceiverCreatedForExistingFrame
+#endif
 TEST_F(ContentCaptureReceiverMultipleFrameTest,
-       ReceiverCreatedForExistingFrame) {
+       MAYBE_ReceiverCreatedForExistingFrame) {
   EXPECT_EQ(
       2u,
       content_capture_receiver_manager_helper()->GetFrameMapSizeForTesting());