Rework the way Widget::Init works:

chrome/browser/ui/views/bubble/bubble.cc

Index: chrome/browser/ui/views/bubble/bubble.cc
===================================================================
--- chrome/browser/ui/views/bubble/bubble.cc	(revision 82649)
+++ chrome/browser/ui/views/bubble/bubble.cc	(working copy)
@@ -69,8 +69,7 @@
     views::View* contents,
     BubbleDelegate* delegate,
     bool show_while_screen_is_locked) {
-  Bubble* bubble = new Bubble(views::WidgetGtk::TYPE_POPUP,
-                              show_while_screen_is_locked);
+  Bubble* bubble = new Bubble(show_while_screen_is_locked);
   bubble->InitBubble(parent, position_relative_to, arrow_location,
                      contents, delegate);
   return bubble;
@@ -122,7 +121,6 @@
 Bubble::Bubble()
     :
 #if defined(OS_LINUX)
-      WidgetGtk(TYPE_WINDOW),
       border_contents_(NULL),
 #elif defined(OS_WIN)
       border_(NULL),
@@ -138,9 +136,8 @@
 }
 
 #if defined(OS_CHROMEOS)
-Bubble::Bubble(views::WidgetGtk::Type type, bool show_while_screen_is_locked)
-    : WidgetGtk(type),
-      border_contents_(NULL),
+Bubble::Bubble(bool show_while_screen_is_locked)
+    : border_contents_(NULL),
       delegate_(NULL),
       show_status_(kOpen),
       fade_away_on_close_(false),
@@ -185,18 +182,21 @@
     SetOpacity(0);
   }
 
-  border_->Init(CreateBorderContents(), parent->GetNativeView());
+  border_->InitBorderWidgetWin(CreateBorderContents(), parent->GetNativeView());
   border_->border_contents()->SetBackgroundColor(kBackgroundColor);
 
   // We make the BorderWidgetWin the owner of the Bubble HWND, so that the
   // latter is displayed on top of the former.
-  WidgetWin::Init(border_->GetNativeView(), gfx::Rect());
+  views::Widget::CreateParams params(views::Widget::CreateParams::TYPE_POPUP);
+  params.parent = border_->GetNativeView();
+  GetWidget()->Init(params);
 
   SetWindowText(GetNativeView(), delegate_->accessible_name().c_str());
 #elif defined(OS_LINUX)
-  MakeTransparent();
-  make_transient_to_parent();
-  WidgetGtk::InitWithWidget(parent, gfx::Rect());
+  views::Widget::CreateParams params(views::Widget::CreateParams::TYPE_WINDOW);
+  params.transparent = true;
+  params.parent_widget = parent;
+  GetWidget()->Init(params);
 #if defined(OS_CHROMEOS)
   {
     vector<int> params;