Don't allow new windows to be created outside the monitor's work area....

chrome/browser/ui/views/tabs/dragged_tab_controller.cc

Index: chrome/browser/ui/views/tabs/dragged_tab_controller.cc
===================================================================
--- chrome/browser/ui/views/tabs/dragged_tab_controller.cc	(revision 72124)
+++ chrome/browser/ui/views/tabs/dragged_tab_controller.cc	(working copy)
@@ -537,6 +537,18 @@
     // otherwise we may attempt to maximize on the wrong monitor.
     return cursor_point;
   }
+  // If the cursor is outside the monitor area, move it inside. For example,
+  // dropping a tab onto the task bar on Windows produces this situation.
+  DockInfo dock_info_for_cursor = DockInfo::GetDockInfoAtPoint(cursor_point,
+    std::set<gfx::NativeView>());

[sky, 2011/01/21 18:55:19]

this should be indented by 4.

Using DockInfo to get the monitor bounds is a bit of a hack. Instead add a
method to views/screen, say GetMonitorWorkArea, that you call and DockInfo
calls.

+  if (cursor_point.x() < dock_info_for_cursor.monitor_bounds().x())
+    cursor_point.set_x(dock_info_for_cursor.monitor_bounds().x());
+  else if (cursor_point.x() > dock_info_for_cursor.monitor_bounds().right())
+    cursor_point.set_x(dock_info_for_cursor.monitor_bounds().right());
+  if (cursor_point.y() < dock_info_for_cursor.monitor_bounds().y())
+    cursor_point.set_y(dock_info_for_cursor.monitor_bounds().y());
+  else if (cursor_point.y() > dock_info_for_cursor.monitor_bounds().bottom())
+    cursor_point.set_y(dock_info_for_cursor.monitor_bounds().bottom());
   return gfx::Point(cursor_point.x() - window_create_point_.x(),
                     cursor_point.y() - window_create_point_.y());
 }