Revert 174880 due to compilation error in pdf_browsertest.cc

chrome/browser/extensions/extension_nacl_browsertest.cc

Index: chrome/browser/extensions/extension_nacl_browsertest.cc
===================================================================
--- chrome/browser/extensions/extension_nacl_browsertest.cc	(revision 174946)
+++ chrome/browser/extensions/extension_nacl_browsertest.cc	(working copy)
@@ -103,14 +103,12 @@
     bool content_handler_plugin_created = false;
     WebContents* web_contents = chrome::GetActiveWebContents(browser());
     ASSERT_TRUE(content::ExecuteJavaScriptAndExtractBool(
-        web_contents->GetRenderViewHost(),
-        "",
-        "window.domAutomationController.send(EmbeddedPluginCreated());",
+        web_contents->GetRenderViewHost(), L"",
+        L"window.domAutomationController.send(EmbeddedPluginCreated());",
         &embedded_plugin_created));
     ASSERT_TRUE(content::ExecuteJavaScriptAndExtractBool(
-        web_contents->GetRenderViewHost(),
-        "",
-        "window.domAutomationController.send(ContentHandlerPluginCreated());",
+        web_contents->GetRenderViewHost(), L"",
+        L"window.domAutomationController.send(ContentHandlerPluginCreated());",
         &content_handler_plugin_created));
 
     EXPECT_EQ(should_create, embedded_plugin_created);