Removed --disable-print-preview switch and policy.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 74dcec82f17f3fbd19ac14f48e1ac7223ad63764..c1f3a8ee7234f8f8cb88ce3419e355581e22d3c8 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -1277,9 +1277,6 @@ void ChromeContentBrowserClient::AppendExtraCommandLineSwitches(
             switches::kDisableClientSidePhishingDetection);
       }
 
-      if (!prefs->GetBoolean(prefs::kPrintPreviewDisabled))
-        command_line->AppendSwitch(switches::kRendererPrintPreview);
-
       InstantService* instant_service =
           InstantServiceFactory::GetForProfile(profile);
       if (instant_service &&
@@ -1341,7 +1338,6 @@ void ChromeContentBrowserClient::AppendExtraCommandLineSwitches(
       switches::kCloudPrintURL,
       switches::kCloudPrintXmppEndpoint,
       switches::kDisableBundledPpapiFlash,
-      switches::kDisableScriptedPrintThrottling,
       switches::kEnableAppView,
       switches::kEnableAppWindowControls,
       switches::kEnableBenchmarking,