Fix DrMemory test for NativeDesktopMediaListTest.UpdateThumbnail

chrome/browser/media/native_desktop_media_list_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/media/native_desktop_media_list.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <string.h>
 #include <vector>
@@ skipping 463 matching lines @@
   window_capturer_->SetWindowList(window_list_);
 
   message_loop()->Run();
 
   EXPECT_EQ(model_->GetSource(1).name, base::UTF8ToUTF16(kTestTitle));
 }
 
 TEST_F(NativeDesktopMediaListTest, UpdateThumbnail) {
   AddWindowsAndVerify(true, kDefaultWindowCount, kDefaultAuraCount, false);
 
+  // Aura windows' thumbnails may unpredictably change overtime.

[Sergey Ulanov, 2016/06/08 22:18:04]

nit: s/overtime/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()));
 
   // Update frame for the window and verify that we get notification about it.
   window_capturer_->SetNextFrameValue(1, 10);
 
   message_loop()->Run();
 }
 
 TEST_F(NativeDesktopMediaListTest, MoveWindow) {
   AddWindowsAndVerify(true, kDefaultWindowCount, kDefaultAuraCount, false);
 
   EXPECT_CALL(observer_, OnSourceMoved(model_.get(), 2, 1))
       .WillOnce(DoAll(CheckListSize(model_.get(), kDefaultWindowCount + 1),
                       QuitMessageLoop(message_loop())));
 
   // Swap the two windows.
   webrtc::WindowCapturer::Window temp = window_list_[0];
   window_list_[0] = window_list_[1];
   window_list_[1] = temp;
   window_capturer_->SetWindowList(window_list_);
 
   message_loop()->Run();
 }