Remove panel size limit when user resizes it.

chrome/browser/ui/panels/panel_resize_browsertest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/panels/base_panel_browser_test.h"
 #include "chrome/browser/ui/panels/detached_panel_strip.h"
 #include "chrome/browser/ui/panels/panel.h"
 #include "chrome/browser/ui/panels/panel_manager.h"
 #include "chrome/browser/ui/panels/panel_resize_controller.h"
 
@@ skipping 217 matching lines @@
                                       panel::RESIZE_BOTTOM);
   mouse_location.Offset(-20, -500);
   panel_manager->ResizeByMouse(mouse_location);
 
   bounds.set_height(panel->min_size().height());
   EXPECT_EQ(bounds, panel->GetBounds());
 
   panel_manager->EndResizingByMouse(false);
   EXPECT_EQ(bounds, panel->GetBounds());
 
-  // Make sure the panel does not resize larger than its size.
+  // Make sure the panel can resize larger than its size. User is in control.
   mouse_location = bounds.origin().Add(
       gfx::Point(bounds.width(), bounds.height() - 2));
   panel_manager->StartResizingByMouse(panel, mouse_location,
                                       panel::RESIZE_BOTTOM_RIGHT);
-  mouse_location.Offset(500, 40);
+
+  // This drag would take us beyond max size.
+  int delta_x = panel->max_size().width() + 10 - panel->GetBounds().width();
+  int delta_y = panel->max_size().height() + 10 - panel->GetBounds().height();
+  mouse_location.Offset(delta_x, delta_y);
   panel_manager->ResizeByMouse(mouse_location);
 
-  bounds.set_size(gfx::Size(panel->max_size().width(), bounds.height() + 40));
+  // The bounds if the max_size does not limit the resize.
+  bounds.set_size(gfx::Size(bounds.width() + delta_x,
+                            bounds.height() + delta_y));
   EXPECT_EQ(bounds, panel->GetBounds());
 
   panel_manager->EndResizingByMouse(false);
   EXPECT_EQ(bounds, panel->GetBounds());
 
   PanelManager::GetInstance()->CloseAll();
 }
 
 IN_PROC_BROWSER_TEST_F(PanelResizeBrowserTest, CloseDetachedPanelOnResize) {
   PanelManager* panel_manager = PanelManager::GetInstance();
@@ skipping 95 matching lines @@
   bounds.set_size(gfx::Size(bounds.width() + 10, bounds.height() + 15));
   bounds.Offset(-10, 0);
   EXPECT_EQ(bounds, panel->GetBounds());
 
   panel_manager->EndResizingByMouse(true);
   EXPECT_EQ(original_bounds, panel->GetBounds());
   EXPECT_FALSE(resize_controller->IsResizing());
 
   panel_manager->CloseAll();
 }