Force MimeHandlerView to always use BrowserPlugin

content/browser/browser_plugin/browser_plugin_guest.h

Index: content/browser/browser_plugin/browser_plugin_guest.h
diff --git a/content/browser/browser_plugin/browser_plugin_guest.h b/content/browser/browser_plugin/browser_plugin_guest.h
index ccfb0b990d3b2ee748ae053495a6f266f796ef71..4d93051ee9bad2a4637572ae7b2d96d97a9080ed 100644
--- a/content/browser/browser_plugin/browser_plugin_guest.h
+++ b/content/browser/browser_plugin/browser_plugin_guest.h
@@ -33,6 +33,7 @@
 #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"
@@ -156,6 +157,7 @@ class CONTENT_EXPORT BrowserPluginGuest : public GuestHost,
   // Returns the embedder's RenderWidgetHostView if it is available.
   // Returns nullptr otherwise.
   RenderWidgetHostView* GetOwnerRenderWidgetHostView();
+  RenderWidgetHostView* GetTopLevelRenderWidgetHostView();

[lfg, 2016/09/02 18:29:40]

I think we aren't using this anymore, right?

[EhsanK, 2016/09/02 21:01:06]

Acknowledged.

 
   bool focused() const { return focused_; }
   bool visible() const { return guest_visible_; }
@@ -253,6 +255,11 @@ class CONTENT_EXPORT BrowserPluginGuest : public GuestHost,
 
   void ResendEventToEmbedder(const blink::WebInputEvent& event);
 
+  // TODO(ekaramad): Remove this once https://crbug.com/642826 is resovled.
+  bool is_mime_handler_view_guest() const {
+    return is_mime_handler_view_guest_;
+  }
+
  protected:
 
   // BrowserPluginGuest is a WebContentsObserver of |web_contents| and
@@ -446,6 +453,10 @@ class CONTENT_EXPORT BrowserPluginGuest : public GuestHost,
 
   BrowserPluginGuestDelegate* const delegate_;
 
+  // Whether or not this BrowserPluginGuest corresponds to a guest of tyoe
+  // MimeHandlerView.
+  bool is_mime_handler_view_guest_;
+
   // Weak pointer used to ask GeolocationPermissionContext about geolocation
   // permission.
   base::WeakPtrFactory<BrowserPluginGuest> weak_ptr_factory_;