Have WebContentsViewAndroid own ViewAndroid

content/browser/web_contents/web_contents_view_android.h

Index: content/browser/web_contents/web_contents_view_android.h
diff --git a/content/browser/web_contents/web_contents_view_android.h b/content/browser/web_contents/web_contents_view_android.h
index 771047b97eef9f91630804a2f8779515ba66374e..bd2c52dce6596a14c1baf07826b257f9b5192d0b 100644
--- a/content/browser/web_contents/web_contents_view_android.h
+++ b/content/browser/web_contents/web_contents_view_android.h
@@ -13,6 +13,7 @@
 #include "content/public/browser/web_contents_view_delegate.h"
 #include "content/public/common/context_menu_params.h"
 #include "content/public/common/drop_data.h"
+#include "ui/android/view_android.h"
 #include "ui/gfx/geometry/rect_f.h"
 
 namespace content {
@@ -99,6 +100,9 @@ class WebContentsViewAndroid : public WebContentsView,
   // Interface for extensions to WebContentsView. Used to show the context menu.
   std::unique_ptr<WebContentsViewDelegate> delegate_;
 
+  // The native view associated with the contents of the web.
+  ui::ViewAndroid view_;
+
   DISALLOW_COPY_AND_ASSIGN(WebContentsViewAndroid);
 };