Bug 888510 - In-content theming fixup for the new plugin click-to-activate. Remove the "lightweight" transparent click-to-play theming and make the normal styling plain grey. Switch from a CSS gradient to an image gradient because of performance issues. Highlight the "check for updates" button for outdated plugins. Icons by shorlander and lco, ui-review=lco r=jaws

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rename : toolkit/themes/osx/mozapps/plugins/contentPluginCrashed.png => toolkit/themes/shared/plugins/contentPluginCrashed.png
rename : toolkit/themes/osx/mozapps/plugins/contentPluginDownload.png => toolkit/themes/shared/plugins/contentPluginDownload.png
rename : toolkit/themes/osx/mozapps/plugins/contentPluginMissing.png => toolkit/themes/shared/plugins/contentPluginMissing.png
rename : toolkit/themes/windows/mozapps/plugins/pluginProblem.css => toolkit/themes/shared/plugins/pluginProblem.css