FrameTree::Find only searches relative to local frames.

content/renderer/pepper/pepper_plugin_instance_impl.cc

 // Copyright (c) 2012 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 "content/renderer/pepper/pepper_plugin_instance_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bit_cast.h"
@@ skipping 3247 matching lines @@
   }
   web_request.SetFirstPartyForCookies(document.FirstPartyForCookies());
   if (IsProcessingUserGesture())
     web_request.SetHasUserGesture(true);
 
   GURL gurl(web_request.Url());
   if (gurl.SchemeIs(url::kJavaScriptScheme)) {
     // In imitation of the NPAPI implementation, only |target_frame == frame| is
     // allowed for security reasons.
     WebFrame* target_frame =
-        frame->View()->FindFrameByName(WebString::FromUTF8(target), frame);
+        frame->FindFrameByName(WebString::FromUTF8(target));
     if (target_frame != frame)
       return PP_ERROR_NOACCESS;
 
     // TODO(viettrungluu): NPAPI sends the result back to the plugin -- do we
     // need that?
     blink::WebScopedUserGesture user_gesture(CurrentUserGestureToken());
     WebString result = container_->ExecuteScriptURL(gurl, false);
     return result.IsNull() ? PP_ERROR_FAILED : PP_OK;
   }
 
@@ skipping 211 matching lines @@
     const cc::TextureMailbox& mailbox) const {
   auto it =
       std::find_if(texture_ref_counts_.begin(), texture_ref_counts_.end(),
                    [&mailbox](const TextureMailboxRefCount& ref_count) {
                      return ref_count.first.mailbox() == mailbox.mailbox();
                    });
   return it != texture_ref_counts_.end();
 }
 
 }  // namespace content