Wait for the GPU info to be collected.

chrome/browser/gpu_process_host_ui_shim.cc

Index: chrome/browser/gpu_process_host_ui_shim.cc
===================================================================
--- chrome/browser/gpu_process_host_ui_shim.cc	(revision 69024)
+++ chrome/browser/gpu_process_host_ui_shim.cc	(working copy)
@@ -104,6 +104,12 @@
 void GpuProcessHostUIShim::OnGraphicsInfoCollected(const GPUInfo& gpu_info) {
   gpu_info_ = gpu_info;
   child_process_logging::SetGpuInfo(gpu_info);
+
+  // Used only in testing.
+  if (gpu_info_collected_callback_.get()) {
+    gpu_info_collected_callback_->Run();
+    gpu_info_collected_callback_.reset();

[apatrick_chromium, 2010/12/13 21:16:35]

I think the caller of set_gpu_info_collected_callback should set the callback to
null if they don't want the callback invoked in the future. As nduca pointed
out, the callback might be called multiple times with increasing amounts of
information available. Specifically the dxdiag info on windows takes a couple of
seconds to come back while the basic info like device and vendor id comes back
more quickly.

[kkania, 2010/12/13 22:12:57]

Done.

+  }
 }
 
 void GpuProcessHostUIShim::OnScheduleComposite(int renderer_id,