Revert 272587 "Remove kEnablePrintPreview now that the pdf plugi..."

trunk/src/chrome/common/chrome_switches.cc

Index: trunk/src/chrome/common/chrome_switches.cc
===================================================================
--- trunk/src/chrome/common/chrome_switches.cc	(revision 272619)
+++ trunk/src/chrome/common/chrome_switches.cc	(working copy)
@@ -331,9 +331,6 @@
 const char kDisablePrerenderLocalPredictor[] =
     "disable-prerender-local-predictor";
 
-// Disables print preview (For testing, and for users who don't like us. :[ )
-const char kDisablePrintPreview[]           = "disable-print-preview";
-
 // Normally when the user attempts to navigate to a page that was the result of
 // a post we prompt to make sure they want to. This switch may be used to
 // disable that check. This switch is used during automated testing.
@@ -1412,6 +1409,18 @@
 const char kFileManagerExtensionPath[]      = "filemgr-ext-path";
 #endif
 
+// Controls print preview in the browser process.
+#if defined(GOOGLE_CHROME_BUILD)
+// Disables print preview (For testing, and for users who don't like us. :[ )
+const char kDisablePrintPreview[]           = "disable-print-preview";
+#else
+// Enables print preview. Chromium normally does not have the PDF viewer,
+// required for print preview.
+// pdf.dll or libpdf.so should be present in primary directory of
+// Chromium. For local builds it's usually out/Debug or out/Release.
+const char kEnablePrintPreview[]            = "enable-print-preview";
+#endif
+
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //