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

trunk/src/chrome/common/chrome_switches.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
@@ skipping 313 matching lines @@
 // Disables the usage of Portable Native Client.
 const char kDisablePnacl[]                  = "disable-pnacl";
 
 // Disable speculative TCP/IP preconnection.
 const char kDisablePreconnect[]             = "disable-preconnect";
 
 // Disable prerendering based on local browsing history.
 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.
 const char kDisablePromptOnRepost[]         = "disable-prompt-on-repost";
 
 // Disables support for the QUIC protocol.
 const char kDisableQuic[]                   = "disable-quic";
 
 // Disables support for the HTTPS over QUIC protocol.  This is a temporary
 // testing flag.  This only has an effect if QUIC protocol is enabled.
@@ skipping 1058 matching lines @@
 #if defined(ENABLE_FULL_PRINTING) && !defined(OFFICIAL_BUILD)
 // Enables support to debug printing subsystem.
 const char kDebugPrint[] = "debug-print";
 #endif
 
 #ifndef NDEBUG
 // Enables overriding the path of file manager extension.
 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.
 //
 // You were going to just dump your switches here, weren't you? Instead, please
 // put them in alphabetical order above, or in order inside the appropriate
 // ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches