Replaces |shell_handle| with |application_request| as the name of the parameter to MojoMain().

examples/png_viewer/png_viewer.cc

Index: examples/png_viewer/png_viewer.cc
diff --git a/examples/png_viewer/png_viewer.cc b/examples/png_viewer/png_viewer.cc
index 8e0be4d8ee79126661934a96769bc206c81d74dc..d99dfc39c71246a68873cd5690d6f559cef2a3a1 100644
--- a/examples/png_viewer/png_viewer.cc
+++ b/examples/png_viewer/png_viewer.cc
@@ -223,7 +223,7 @@ class PNGViewer : public ApplicationDelegate,
 }  // namespace examples
 }  // namespace mojo
 
-MojoResult MojoMain(MojoHandle shell_handle) {
+MojoResult MojoMain(MojoHandle application_request) {
   mojo::ApplicationRunnerChromium runner(new mojo::examples::PNGViewer());
-  return runner.Run(shell_handle);
+  return runner.Run(application_request);
 }