Fix compilation on Windows with enable_printing=2.

chrome/common/chrome_utility_printing_messages.h

 // Copyright 2014 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.
 
 // Multiply-included message file, so no include guard.
 
 #include <string>
 #include <vector>
 
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_platform_file.h"
 #include "printing/backend/print_backend.h"
 #include "printing/page_range.h"
 #include "printing/pdf_render_settings.h"
 #include "printing/pwg_raster_settings.h"
 
-#if !defined(ENABLE_FULL_PRINTING)
-#error "Full printing must be enabled"
-#endif
+#define IPC_MESSAGE_START ChromeUtilityPrintingMsgStart
 
-#define IPC_MESSAGE_START ChromeUtilityPrintingMsgStart
+#if defined(ENABLE_FULL_PRINTING)
 
 IPC_STRUCT_TRAITS_BEGIN(printing::PrinterCapsAndDefaults)
   IPC_STRUCT_TRAITS_MEMBER(printer_capabilities)
   IPC_STRUCT_TRAITS_MEMBER(caps_mime_type)
   IPC_STRUCT_TRAITS_MEMBER(printer_defaults)
   IPC_STRUCT_TRAITS_MEMBER(defaults_mime_type)
 IPC_STRUCT_TRAITS_END()
 
 IPC_ENUM_TRAITS_MAX_VALUE(printing::ColorModel, printing::PROCESSCOLORMODEL_RGB)
 
@@ skipping 46 matching lines @@
 IPC_MESSAGE_CONTROL1(ChromeUtilityMsg_GetPrinterCapsAndDefaults,
                      std::string /* printer name */)
 
 // Tells the utility process to get capabilities and defaults for the specified
 // printer. Used on Windows to isolate the service process from printer driver
 // crashes by executing this in a separate process. This does not run in a
 // sandbox. Returns result as printing::PrinterSemanticCapsAndDefaults.
 IPC_MESSAGE_CONTROL1(ChromeUtilityMsg_GetPrinterSemanticCapsAndDefaults,
                      std::string /* printer name */)
 
-#if defined(OS_WIN)
-// Tell the utility process to render the given PDF into a metafile.
-// The metafile path will have ".%d" inserted where the %d is the page number.
-// If no page range is specified, all pages will be converted.
-IPC_MESSAGE_CONTROL4(ChromeUtilityMsg_RenderPDFPagesToMetafiles,
-                     IPC::PlatformFileForTransit,  // PDF file
-                     base::FilePath,  // Base location for output metafile
-                     printing::PdfRenderSettings,  // PDF render settings
-                     std::vector<printing::PageRange>)
-#endif  // OS_WIN
-
 //------------------------------------------------------------------------------
 // Utility process host messages:
 // These are messages from the utility process to the browser.
 
 // Reply when the utility process has succeeded in rendering the PDF to PWG.
 IPC_MESSAGE_CONTROL0(ChromeUtilityHostMsg_RenderPDFPagesToPWGRaster_Succeeded)
 
 // Reply when an error occurred rendering the PDF to PWG.
 IPC_MESSAGE_CONTROL0(ChromeUtilityHostMsg_RenderPDFPagesToPWGRaster_Failed)
 
@@ skipping 14 matching lines @@
 // capabilities and defaults.
 IPC_MESSAGE_CONTROL1(ChromeUtilityHostMsg_GetPrinterCapsAndDefaults_Failed,
                      std::string /* printer name */)
 
 // Reply when the utility process has failed to obtain the printer
 // semantic capabilities and defaults.
 IPC_MESSAGE_CONTROL1(
   ChromeUtilityHostMsg_GetPrinterSemanticCapsAndDefaults_Failed,
   std::string /* printer name */)
 
+#endif  // ENABLE_FULL_PRINTING
+
 #if defined(OS_WIN)
+// Tell the utility process to render the given PDF into a metafile.
+// The metafile path will have ".%d" inserted where the %d is the page number.
+// If no page range is specified, all pages will be converted.
+IPC_MESSAGE_CONTROL4(ChromeUtilityMsg_RenderPDFPagesToMetafiles,
+                     IPC::PlatformFileForTransit,  // PDF file
+                     base::FilePath,  // Base location for output metafile
+                     printing::PdfRenderSettings,  // PDF render settings
+                     std::vector<printing::PageRange>)
+
 // Reply when the utility process has succeeded in rendering the PDF.
 IPC_MESSAGE_CONTROL2(ChromeUtilityHostMsg_RenderPDFPagesToMetafiles_Succeeded,
                      std::vector<printing::PageRange>,  // Pages rendered
                      double)                            // Scale factor
 
 // Reply when an error occurred rendering the PDF.
 IPC_MESSAGE_CONTROL0(ChromeUtilityHostMsg_RenderPDFPagesToMetafile_Failed)
+
 #endif  // OS_WIN