Linux: fix crash when renderer asks for the location of a NULL window

chrome/browser/renderer_host/resource_message_filter.cc

Index: chrome/browser/renderer_host/resource_message_filter.cc
diff --git a/chrome/browser/renderer_host/resource_message_filter.cc b/chrome/browser/renderer_host/resource_message_filter.cc
index e3b18876b0fad7a4d330a0d3fbc1fb64f41a8352..9184e7055f3f1d1417199fa744cc892ef73fbbfc 100644
--- a/chrome/browser/renderer_host/resource_message_filter.cc
+++ b/chrome/browser/renderer_host/resource_message_filter.cc
@@ -567,6 +567,11 @@ void ResourceMessageFilter::OnGetWindowRect(gfx::NativeViewId window_id,
 // Returns the rectangle of the window in which this WebWidget is embedded.
 void ResourceMessageFilter::OnGetRootWindowRect(gfx::NativeViewId window_id,
                                                 gfx::Rect* rect) {
+  if (!window_id) {
+    *rect = gfx::Rect(0, 0, 0, 0);

[Avi (use Gerrit), 2009/03/18 21:09:33]

1. The default constructor for gfx::Rect will do this.
2. This code is out of date; I split this function into three files earlier
today.

+    return;
+  }
+
   // Windows uses GetAncestor(window, GA_ROOT) here which probably means
   // we want the top level window.
   GdkWindow* window =