Aura: Fix window resizing for large drags.

ui/aura/window.cc

 // Copyright (c) 2011 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 "ui/aura/window.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/stl_util.h"
@@ skipping 422 matching lines @@
 Desktop* Window::GetDesktop() {
   return parent_ ? parent_->GetDesktop() : NULL;
 }
 
 void Window::WindowDetachedFromDesktop(aura::Window* window) {
 }
 
 void Window::SetBoundsInternal(const gfx::Rect& new_bounds) {
   gfx::Rect actual_new_bounds(new_bounds);
 
-  // Gives delegate a change to examine and change the new bounds.
-  if (delegate_)
-    delegate_->OnBoundsChanging(&actual_new_bounds);
+  // Ensure we don't go smaller than our minimum bounds.
+  if (delegate_) {
+    const gfx::Size& min_size = delegate_->GetMinimumSize();
+    actual_new_bounds.set_width(
+        std::max(min_size.width(), actual_new_bounds.width()));
+    actual_new_bounds.set_height(
+        std::max(min_size.height(), actual_new_bounds.height()));
+  }
 
   const gfx::Rect old_bounds = layer_->GetTargetBounds();
 
   // Always need to set the layer's bounds -- even if it is to the same thing.
   // This may cause important side effects such as stopping animation.
   layer_->SetBounds(actual_new_bounds);
 
   // If we're not changing the effective bounds, then we can bail early and skip
   // notifying our listeners.
   if (old_bounds == actual_new_bounds)
@@ skipping 77 matching lines @@
 void Window::OnStackingChanged() {
   FOR_EACH_OBSERVER(WindowObserver, observers_, OnWindowStackingChanged(this));
 }
 
 void Window::OnPaintLayer(gfx::Canvas* canvas) {
   if (delegate_)
     delegate_->OnPaint(canvas);
 }
 
 }  // namespace aura