Generate all extension schema namespaces as "api" and instead vary the generated bundle names.

extensions/browser/api/printer_provider_internal/printer_provider_internal_api.h

 // Copyright 2015 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.
 
 #ifndef EXTENSIONS_BROWSER_API_PRINTER_PROVIDER_INTERNAL_PRINTER_PROVIDER_INTERNAL_API_H_
 #define EXTENSIONS_BROWSER_API_PRINTER_PROVIDER_INTERNAL_PRINTER_PROVIDER_INTERNAL_API_H_
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 56 matching lines @@
   // |PrinterProviderInternalReportPrinterCapabilityFunction|.
   void NotifyGetCapabilityResult(const Extension* extension,
                                  int request_id,
                                  const base::DictionaryValue& capability);
 
   // Notifies observers that a printerProvider.onPrintRequested callback has
   // been called. Called from
   // |PrinterProviderInternalReportPrintResultFunction|.
   void NotifyPrintResult(const Extension* extension,
                          int request_id,
-                         core_api::printer_provider_internal::PrintError error);
+                         api::printer_provider_internal::PrintError error);
 
   // Notifies observers that a printerProvider.onGetUsbPrinterInfoRequested
   // callback has been called. Called from
   // |PrinterProviderInternalReportUsbPrinterInfoFunction|.
   void NotifyGetUsbPrinterInfoResult(
       const Extension* extension,
       int request_id,
-      const core_api::printer_provider::PrinterInfo* printer_info);
+      const api::printer_provider::PrinterInfo* printer_info);
 
   base::ObserverList<PrinterProviderInternalAPIObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(PrinterProviderInternalAPI);
 };
 
 class PrinterProviderInternalReportPrintResultFunction
     : public UIThreadExtensionFunction {
  public:
   PrinterProviderInternalReportPrintResultFunction();
@@ skipping 76 matching lines @@
  private:
   DECLARE_EXTENSION_FUNCTION("printerProviderInternal.reportUsbPrinterInfo",
                              PRINTERPROVIDERINTERNAL_REPORTUSBPRINTERINFO)
 
   DISALLOW_COPY_AND_ASSIGN(PrinterProviderInternalReportUsbPrinterInfoFunction);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_PRINTER_PROVIDER_INTERNAL_PRINTER_PROVIDER_INTERNAL_API_H_