Add support for window size constraints to ShellWindowGtk.

chrome/browser/ui/gtk/extensions/shell_window_gtk.cc

Index: chrome/browser/ui/gtk/extensions/shell_window_gtk.cc
diff --git a/chrome/browser/ui/gtk/extensions/shell_window_gtk.cc b/chrome/browser/ui/gtk/extensions/shell_window_gtk.cc
index fa59701f5664dc70d231f723cd45789f9501703d..bff76e0d6a07828a3f349d9f48bff51288f06921 100644
--- a/chrome/browser/ui/gtk/extensions/shell_window_gtk.cc
+++ b/chrome/browser/ui/gtk/extensions/shell_window_gtk.cc
@@ -15,12 +15,38 @@ ShellWindowGtk::ShellWindowGtk(ExtensionHost* host)
 
   gtk_container_add(GTK_CONTAINER(window_), host_->view()->native_view());
 
-  // TOOD(mihaip): Allow window dimensions to be specified in manifest (and
-  // restore prior window dimensions and positions on relaunch).
-  gtk_widget_set_size_request(GTK_WIDGET(window_), 512, 384);
+  const Extension* extension = host_->extension();
+
+  // TOOD(mihaip): restore prior window dimensions and positions on relaunch.
+  gtk_window_set_default_size(
+      window_, extension->launch_width(), extension->launch_height());
+
+  int min_width = extension->launch_min_width();
+  int min_height = extension->launch_min_height();
+  int max_width = extension->launch_max_width();
+  int max_height = extension->launch_max_height();
+  GdkGeometry hints;
+  int hints_mask = 0;
+  if (min_width || min_height) {
+    hints.min_height = min_height;
+    hints.min_width = min_width;
+    hints_mask |= GDK_HINT_MIN_SIZE;
+  }
+  if (max_width || max_height) {
+    hints.max_height = max_height ? max_height : G_MAXINT;

[Mihai Parparita -not on Chrome, 2012/03/02 02:01:00]

Per http://developer.gnome.org/gdk/stable/gdk-Windows.html#GdkGeometry it seems
like -1 should work for when the max size is omitted, but that didn't work for
me if only one of the width/height was specified.

+    hints.max_width = max_width ? max_width : G_MAXINT;
+    hints_mask |= GDK_HINT_MAX_SIZE;
+  }
+  if (hints_mask) {
+    gtk_window_set_geometry_hints(
+        window_,
+        GTK_WIDGET(window_),
+        &hints,
+        static_cast<GdkWindowHints>(hints_mask));
+  }
 
   // TODO(mihaip): Mirror contents of <title> tag in window title
-  gtk_window_set_title(window_, host->extension()->name().c_str());
+  gtk_window_set_title(window_, extension->name().c_str());
 
   g_signal_connect(window_, "delete-event",
                    G_CALLBACK(OnMainWindowDeleteEventThunk), this);