Allow MimeHandlerViewGuest to be notified of StopFinding events.

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index 507ebbe57de5de78422bdf86c398e0b70c9e7e00..91b0925de18f0b16bf9e24484c3ba86de183b7bf 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -2496,6 +2496,11 @@ void WebContentsImpl::Find(int request_id,
 }
 
 void WebContentsImpl::StopFinding(StopFindAction action) {
+  // See if a top level browser plugin handles the stop finding request first.
+  if (browser_plugin_embedder_ &&
+      browser_plugin_embedder_->StopFinding(action)) {
+    return;
+  }
   Send(new ViewMsg_StopFinding(GetRoutingID(), action));
 }