Aura content shell: make the window shrinkable.

content/shell/browser/shell_views.cc

 // Copyright 2013 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 "content/shell/browser/shell.h"
 
 #include "base/command_line.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_view.h"
@@ skipping 252 matching lines @@
   }
   virtual void WindowClosing() OVERRIDE {
     if (shell_) {
       delete shell_;
       shell_ = NULL;
     }
   }
   virtual View* GetContentsView() OVERRIDE { return this; }
 
   // Overridden from View
+  virtual gfx::Size GetMinimumSize() OVERRIDE {
+    // We want to be able to make the window smaller than its initial
+    // (preferred) size.
+    return gfx::Size();
+  }
   virtual void ViewHierarchyChanged(
       const ViewHierarchyChangedDetails& details) OVERRIDE {
     if (details.is_add && details.child == this) {
       InitShellWindow();
     }
   }
 
   // Overridden from AcceleratorTarget:
   virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) OVERRIDE {
     switch (accelerator.key_code()) {
@@ skipping 132 matching lines @@
 }
 
 void Shell::PlatformSetTitle(const base::string16& title) {
   ShellWindowDelegateView* delegate_view =
     static_cast<ShellWindowDelegateView*>(window_widget_->widget_delegate());
   delegate_view->SetWindowTitle(title);
   window_widget_->UpdateWindowTitle();
 }
 
 }  // namespace content