This issue started showing up in dev build revision 8242. Previous revision 8234 is 
working ok.

Changelist link is at 
http://build.chromium.org/buildbot/perf/dashboard/changelog.html?
url=/trunk/src&range=8234:8242&mode=html

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The following revision refers to this bug:
    http://src.chromium.org/viewvc/chrome?view=rev&revision=10960 

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r10960 | ananta@chromium.org | 2009-03-04 18:07:18 -0800 (Wed, 04 Mar 2009) | 10 lines
Changed paths:
   M http://src.chromium.org/viewvc/chrome/trunk/src/chrome/browser/plugin_process_host.cc?r1=10960&r2=10959
   M http://src.chromium.org/viewvc/chrome/trunk/src/chrome/browser/plugin_process_host.h?r1=10960&r2=10959

Ensure that we display a sad face for a windowed plugin when the plugin process crashes. This was a regression introduced by creating the plugin parent on the browser UI thread, which remains valid when the plugin process crashes.

The fix is to track plugin wrapper windows in the PluginProcessHost class and destroy any remaining windows in the destructor. Removed the DestroyWindowTask
which destroys the windows on the UI thread. We can achieve the same result by posting WM_CLOSE messages to these windows.

This fixes http://code.google.com/p/chromium/issues/detail?id=7673

Bug=7673

Review URL: http://codereview.chromium.org/40120
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Verified on 2.0.268.0 (10990)

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Chrome 2.0.163.0 (9655)

<b>What steps will reproduce the problem?</b>
1. Go to a page using a plugin i.e. http://go/compat/plugins_testing/QT_HTML_param_testcases/AutoHREF_True.html
or youtube.com 
2. Bring up the task manager and end the process for the plugin

What is the expected output? 
A sad face should be seen. In case of youtube, the main video using flash 
doesn't show the sad face but the ad on side shows the sad face.

What do you see instead?
Nothing

<b>Please use labels and text to provide additional information.</b>