Force MimeHandlerView to always use BrowserPlugin

content/browser/browser_plugin/browser_plugin_guest.h

 // 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.
 
 // A BrowserPluginGuest is the browser side of a browser <--> embedder
 // renderer channel. A BrowserPlugin (a WebPlugin) is on the embedder
 // renderer side of browser <--> embedder renderer communication.
 //
 // BrowserPluginGuest lives on the UI thread of the browser process. Any
 // messages about the guest render process that the embedder might be interested
@@ skipping 15 matching lines @@
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "build/build_config.h"
 #include "content/common/edit_command.h"
 #include "content/common/input/input_event_ack_state.h"
 #include "content/public/browser/browser_plugin_guest_delegate.h"
 #include "content/public/browser/guest_host.h"
+#include "content/public/browser/guest_mode.h"
 #include "content/public/browser/readback_types.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "third_party/WebKit/public/platform/WebDragOperation.h"
 #include "third_party/WebKit/public/platform/WebFocusType.h"
 #include "third_party/WebKit/public/web/WebCompositionUnderline.h"
 #include "third_party/WebKit/public/web/WebDragStatus.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "ui/base/ime/text_input_mode.h"
 #include "ui/base/ime/text_input_type.h"
 #include "ui/gfx/geometry/rect.h"
@@ skipping 200 matching lines @@
 
   // Find the given |search_text| in the page. Returns true if the find request
   // is handled by this browser plugin guest.
   bool HandleFindForEmbedder(int request_id,
                              const base::string16& search_text,
                              const blink::WebFindOptions& options);
   bool HandleStopFindingForEmbedder(StopFindAction action);
 
   void ResendEventToEmbedder(const blink::WebInputEvent& event);
 
+  // TODO(ekaramad): Remove this once https://crbug.com/642826 is resolved.
+  bool can_use_cross_process_frames() const {
+    return can_use_cross_process_frames_;
+  }
+
  protected:
 
   // BrowserPluginGuest is a WebContentsObserver of |web_contents| and
   // |web_contents| has to stay valid for the lifetime of BrowserPluginGuest.
   // Constructor protected for testing.
   BrowserPluginGuest(bool has_render_view,
                      WebContentsImpl* web_contents,
                      BrowserPluginGuestDelegate* delegate);
 
   // Protected for testing.
@@ skipping 173 matching lines @@
 
   // Ignore the URL dragged into guest that is coming from guest.
   bool ignore_dragged_url_;
 
   // This is a queue of messages that are destined to be sent to the embedder
   // once the guest is attached to a particular embedder.
   std::deque<linked_ptr<IPC::Message> > pending_messages_;
 
   BrowserPluginGuestDelegate* const delegate_;
 
+  // Whether or not this BrowserPluginGuest corresponds to a guest of tyoe
+  // MimeHandlerView.

[Charlie Reis, 2016/09/15 20:56:10]

Don't forget to update the comment.  (Also, "tyoe" -> "type")

[EhsanK, 2016/09/21 21:34:53]

Acknowledged.

+  bool can_use_cross_process_frames_;
+
   // Weak pointer used to ask GeolocationPermissionContext about geolocation
   // permission.
   base::WeakPtrFactory<BrowserPluginGuest> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginGuest);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_GUEST_H_