Reland r167487: Get full WebPluginInfo for the PDF plug-in before enabling it for print preview.

chrome/browser/printing/print_preview_tab_controller.cc

Index: chrome/browser/printing/print_preview_tab_controller.cc
diff --git a/chrome/browser/printing/print_preview_tab_controller.cc b/chrome/browser/printing/print_preview_tab_controller.cc
index 63da491503603cb5e5ad6220d93b9dc090ad4588..ea9061e5119e59b935795016c159837325db3876 100644
--- a/chrome/browser/printing/print_preview_tab_controller.cc
+++ b/chrome/browser/printing/print_preview_tab_controller.cc
@@ -37,6 +37,7 @@
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
+#include "content/public/browser/plugin_service.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
@@ -56,13 +57,19 @@ namespace {
 
 void EnableInternalPDFPluginForTab(TabContents* preview_tab) {
   // Always enable the internal PDF plugin for the print preview page.
+  FilePath pdf_plugin_path;
+  if (!PathService::Get(chrome::FILE_PDF_PLUGIN, &pdf_plugin_path))
+    return;
+
   webkit::WebPluginInfo pdf_plugin;
-  PathService::Get(chrome::FILE_PDF_PLUGIN, &pdf_plugin.path);
+  if (!content::PluginService::GetInstance()->GetPluginInfoByPath(
+      pdf_plugin_path, &pdf_plugin))
+    return;
 
   ChromePluginServiceFilter::GetInstance()->OverridePluginForTab(
-        preview_tab->web_contents()->GetRenderProcessHost()->GetID(),
-        preview_tab->web_contents()->GetRenderViewHost()->GetRoutingID(),
-        GURL(), pdf_plugin);
+      preview_tab->web_contents()->GetRenderProcessHost()->GetID(),
+      preview_tab->web_contents()->GetRenderViewHost()->GetRoutingID(),
+      GURL(), pdf_plugin);
 }
 
 // WebDialogDelegate that specifies what the print preview dialog