Fix DrMemory test for NativeDesktopMediaListTest.UpdateThumbnail

chrome/browser/media/native_desktop_media_list_unittest.cc

Index: chrome/browser/media/native_desktop_media_list_unittest.cc
diff --git a/chrome/browser/media/native_desktop_media_list_unittest.cc b/chrome/browser/media/native_desktop_media_list_unittest.cc
index 98c4a11f0881d89993deb4786027ef67a4bc275d..8cde654ef8714a6decae4ca604de2e1f9a42b149 100644
--- a/chrome/browser/media/native_desktop_media_list_unittest.cc
+++ b/chrome/browser/media/native_desktop_media_list_unittest.cc
@@ -481,6 +481,13 @@ TEST_F(NativeDesktopMediaListTest, UpdateTitle) {
 TEST_F(NativeDesktopMediaListTest, UpdateThumbnail) {
   AddWindowsAndVerify(true, kDefaultWindowCount, kDefaultAuraCount, false);
 
+  // Aura windows' thumbnails may unpredictably change over time.
+  for (size_t i = kDefaultWindowCount - kDefaultAuraCount;
+       i < kDefaultWindowCount; ++i) {
+    EXPECT_CALL(observer_, OnSourceThumbnailChanged(model_.get(), i + 1))
+        .Times(testing::AnyNumber());
+  }
+
   EXPECT_CALL(observer_, OnSourceThumbnailChanged(model_.get(), 1))
       .WillOnce(QuitMessageLoop(message_loop()));