Added PrintingContext::Delegate to get parent view handle and application locale.

chrome/browser/ui/webui/print_preview/print_preview_handler.cc

Index: chrome/browser/ui/webui/print_preview/print_preview_handler.cc
diff --git a/chrome/browser/ui/webui/print_preview/print_preview_handler.cc b/chrome/browser/ui/webui/print_preview/print_preview_handler.cc
index 558af3b036a9f4d0833d3c01038d767f8064bab9..bb8552bacce605a717587b38bfbb31fc5f878adf 100644
--- a/chrome/browser/ui/webui/print_preview/print_preview_handler.cc
+++ b/chrome/browser/ui/webui/print_preview/print_preview_handler.cc
@@ -261,10 +261,19 @@ std::string GetDefaultPrinterOnFileThread() {
   return default_printer;
 }
 
+class PrintingContextDelegate : public printing::PrintingContext::Delegate {
+ public:
+  // PrintingContext::Delegate methods.
+  virtual gfx::NativeView GetParentView() OVERRIDE { return NULL; }
+  virtual std::string GetAppLocale() OVERRIDE {
+    return g_browser_process->GetApplicationLocale();
+  }
+};
+
 gfx::Size GetDefaultPdfMediaSizeMicrons() {
+  PrintingContextDelegate delegate;
   scoped_ptr<printing::PrintingContext> printing_context(
-      printing::PrintingContext::Create(
-          g_browser_process->GetApplicationLocale()));
+      printing::PrintingContext::Create(&delegate));
   if (printing::PrintingContext::OK != printing_context->UsePdfSettings() ||
       printing_context->settings().device_units_per_inch() <= 0) {
     return gfx::Size();