Gets the drop arrow to show when dragging URLs over the tab strip....

chrome/browser/views/tabs/tab_strip.cc

Index: chrome/browser/views/tabs/tab_strip.cc
===================================================================
--- chrome/browser/views/tabs/tab_strip.cc	(revision 26736)
+++ chrome/browser/views/tabs/tab_strip.cc	(working copy)
@@ -11,9 +11,6 @@
 #include "app/os_exchange_data.h"
 #include "app/resource_bundle.h"
 #include "app/slide_animation.h"
-#if defined(OS_WIN)
-#include "app/win_util.h"
-#endif
 #include "base/gfx/size.h"
 #include "base/stl_util-inl.h"
 #include "chrome/browser/browser_theme_provider.h"
@@ -33,6 +30,13 @@
 #include "views/window/non_client_view.h"
 #include "views/window/window.h"
 
+#if defined(OS_WIN)
+#include "app/win_util.h"
+#include "views/widget/widget_win.h"
+#elif defined(OS_LINUX)
+#include "views/widget/widget_gtk.h"
+#endif
+
 #undef min
 #undef max
 
@@ -1680,7 +1684,8 @@
       HWND_TOPMOST, drop_bounds.x(), drop_bounds.y(), drop_bounds.width(),
       drop_bounds.height(), SWP_NOACTIVATE | SWP_SHOWWINDOW);
 #else
-  NOTIMPLEMENTED();
+  drop_info_->arrow_window->SetBounds(drop_bounds);
+  drop_info_->arrow_window->Show();
 #endif
 }
 
@@ -1705,29 +1710,30 @@
     : drop_index(drop_index),
       drop_before(drop_before),
       point_down(point_down) {
+  arrow_view = new views::ImageView;
+  arrow_view->SetImage(GetDropArrowImage(point_down));
+
 #if defined(OS_WIN)
   arrow_window = new views::WidgetWin;
+  arrow_window->Init(
+      NULL,
+      gfx::Rect(0, 0, drop_indicator_width, drop_indicator_height));
   arrow_window->set_window_style(WS_POPUP);
   arrow_window->set_window_ex_style(WS_EX_TOPMOST | WS_EX_NOACTIVATE |
                                     WS_EX_LAYERED | WS_EX_TRANSPARENT);
-
-  arrow_view = new views::ImageView;
-  arrow_view->SetImage(GetDropArrowImage(point_down));
-
+#else
+  arrow_window = new views::WidgetGtk(views::WidgetGtk::TYPE_POPUP);
+  arrow_window->MakeTransparent();
   arrow_window->Init(
       NULL,
       gfx::Rect(0, 0, drop_indicator_width, drop_indicator_height));
+#endif
   arrow_window->SetContentsView(arrow_view);
-#else
-  NOTIMPLEMENTED();
-#endif
 }
 
 TabStrip::DropInfo::~DropInfo() {
   // Close eventually deletes the window, which deletes arrow_view too.
-#if defined(OS_WIN)
   arrow_window->Close();
-#endif
 }
 
 ///////////////////////////////////////////////////////////////////////////////