Migrate plugins to support new 'unobscured' rect interface

content/renderer/pepper/pepper_webplugin_impl.cc

Index: content/renderer/pepper/pepper_webplugin_impl.cc
diff --git a/content/renderer/pepper/pepper_webplugin_impl.cc b/content/renderer/pepper/pepper_webplugin_impl.cc
index a92c83cbc7abde00b08ca06eb829133d245d3f21..7227a7f6132d5343edd8b2c0ec79b3a624d157c3 100644
--- a/content/renderer/pepper/pepper_webplugin_impl.cc
+++ b/content/renderer/pepper/pepper_webplugin_impl.cc
@@ -170,6 +170,7 @@ void PepperWebPluginImpl::paint(WebCanvas* canvas, const WebRect& rect) {
 void PepperWebPluginImpl::updateGeometry(
     const WebRect& window_rect,
     const WebRect& clip_rect,
+    const WebRect& unobscured_rect,
     const WebVector<WebRect>& cut_outs_rects,
     bool is_visible) {
   plugin_rect_ = window_rect;