Allow the user to resize the chromium window as small as they like.

chrome/browser/gtk/browser_window_gtk.cc

 // Copyright (c) 2009 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/gtk/browser_window_gtk.h"
 
 #include <gdk/gdkkeysyms.h>
 
 #include "base/base_paths_linux.h"
 #include "base/command_line.h"
@@ skipping 188 matching lines @@
 
 // TODO(estade): Break up this constructor into helper functions to improve
 // readability.
 BrowserWindowGtk::BrowserWindowGtk(Browser* browser)
     :  browser_(browser),
        // TODO(port): make this a pref.
        custom_frame_(false),
        full_screen_(false),
        method_factory_(this) {
   window_ = GTK_WINDOW(gtk_window_new(GTK_WINDOW_TOPLEVEL));
-  gtk_window_set_default_size(window_, 640, 480);
+  SetGeometryHints();
   g_object_set_data(G_OBJECT(window_), "browser_window_gtk", this);
   g_signal_connect(window_, "delete-event",
                    G_CALLBACK(MainWindowDeleteEvent), this);
   g_signal_connect(window_, "destroy",
                    G_CALLBACK(MainWindowDestroy), this);
   g_signal_connect(window_, "configure-event",
                    G_CALLBACK(MainWindowConfigured), this);
   g_signal_connect(window_, "window-state-event",
                    G_CALLBACK(MainWindowStateChanged), this);
   g_signal_connect(window_, "key-press-event",
@@ skipping 432 matching lines @@
   return browser_->SupportsWindowFeature(Browser::FEATURE_TITLEBAR);
 }
 
 void BrowserWindowGtk::AddFindBar(FindBarGtk* findbar) {
   contents_container_->set_find_bar(findbar);
   gtk_box_pack_start(GTK_BOX(content_vbox_), findbar->widget(),
                      FALSE, FALSE, 0);
   gtk_box_reorder_child(GTK_BOX(content_vbox_), findbar->widget(), 2);
 }
 
+void BrowserWindowGtk::SetGeometryHints() {
+  gtk_window_set_default_size(window_, 640, 480);
+
+  // Allow the user to resize us arbitrarily small.
+  GdkGeometry geometry;
+  geometry.min_width = 1;
+  geometry.min_height = 1;
+  gtk_window_set_geometry_hints(window_, NULL, &geometry, GDK_HINT_MIN_SIZE);
+}
+
 void BrowserWindowGtk::ConnectAccelerators() {
   GtkAccelGroup* accel_group = gtk_accel_group_new();
   gtk_window_add_accel_group(window_, accel_group);
   // Drop the initial ref on |accel_group| so |window_| will own it.
   g_object_unref(accel_group);
 
   for (size_t i = 0; i < arraysize(kAcceleratorMap); ++i) {
     gtk_accel_group_connect(
         accel_group,
         kAcceleratorMap[i].keyval,
@@ skipping 33 matching lines @@
   } else {
     browser_window->ExecuteBrowserCommand(command_id);
   }
 
   return TRUE;
 }
 
 void BrowserWindowGtk::ExecuteBrowserCommand(int id) {
   browser_->ExecuteCommand(id);
 }