Add onGetUsbPrinterInfoRequested event to printerProvider API.

chrome/browser/ui/webui/print_preview/print_preview_handler.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/browser/ui/webui/print_preview/print_preview_handler.h"
 
 #include <ctype.h>
 
 #include <map>
 #include <string>
@@ skipping 658 matching lines @@
       base::Bind(&PrintPreviewHandler::HandleGetExtensionPrinters,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "getExtensionUsbPrinters",
       base::Bind(&PrintPreviewHandler::HandleGetExtensionUsbPrinters,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback(
       "getExtensionPrinterCapabilities",
       base::Bind(&PrintPreviewHandler::HandleGetExtensionPrinterCapabilities,
                  base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      "grantExtensionUsbPrinterAccess",
+      base::Bind(&PrintPreviewHandler::HandleGrantExtensionUsbPrinterAccess,
+                 base::Unretained(this)));
   RegisterForGaiaCookieChanges();
 }
 
 bool PrintPreviewHandler::PrivetPrintingEnabled() {
 #if defined(ENABLE_SERVICE_DISCOVERY)
   return true;
 #else
   return false;
 #endif
 }
@@ skipping 60 matching lines @@
   extension_printer_handler_->StartGetPrinters(base::Bind(
       &PrintPreviewHandler::OnGotPrintersForExtension, base::Unretained(this)));
 }
 
 void PrintPreviewHandler::HandleGetExtensionUsbPrinters(
     const base::ListValue* args) {
   extension_printer_handler_->StartGetUsbPrinters(base::Bind(
       &PrintPreviewHandler::OnGotExtensionUsbPrinters, base::Unretained(this)));
 }
 
+void PrintPreviewHandler::HandleGrantExtensionUsbPrinterAccess(
+    const base::ListValue* args) {
+  std::string extension_id;
+  bool ok = args->GetString(0, &extension_id);
+  DCHECK(ok);
+  int device_id;
+  ok = args->GetInteger(1, &device_id);
+  DCHECK(ok);
+
+  EnsureExtensionPrinterHandlerSet();
+  extension_printer_handler_->StartGrantUsbPrinterAccess(
+      extension_id, device_id,
+      base::Bind(&PrintPreviewHandler::OnGotExtensionUsbPrinterInfo,
+                 base::Unretained(this), extension_id, device_id));
+}
+
 void PrintPreviewHandler::HandleGetExtensionPrinterCapabilities(
     const base::ListValue* args) {
   std::string printer_id;
   bool ok = args->GetString(0, &printer_id);
   DCHECK(ok);
 
   EnsureExtensionPrinterHandlerSet();
   extension_printer_handler_->StartGetCapability(
       printer_id,
       base::Bind(&PrintPreviewHandler::OnGotExtensionPrinterCapabilities,
@@ skipping 937 matching lines @@
     bool done) {
   web_ui()->CallJavascriptFunction("onExtensionPrintersAdded", printers,
                                    base::FundamentalValue(done));
 }
 
 void PrintPreviewHandler::OnGotExtensionUsbPrinters(
     const base::ListValue& printers) {
   web_ui()->CallJavascriptFunction("onExtensionUsbPrintersAdded", printers);
 }
 
+void PrintPreviewHandler::OnGotExtensionUsbPrinterInfo(
+    const std::string& extension_id,
+    int device_id,
+    const base::DictionaryValue& printer_info) {
+  if (printer_info.empty()) {
+    web_ui()->CallJavascriptFunction("failedToGetExtensionUsbPrinterInfo",
+                                     base::StringValue(extension_id),
+                                     base::FundamentalValue(device_id));
+    return;
+  }
+
+  web_ui()->CallJavascriptFunction("onExtensionUsbPrinterAdded", printer_info);
+}
+
 void PrintPreviewHandler::OnGotExtensionPrinterCapabilities(
     const std::string& printer_id,
     const base::DictionaryValue& capabilities) {
   if (capabilities.empty()) {
     web_ui()->CallJavascriptFunction("failedToGetExtensionPrinterCapabilities",
                                      base::StringValue(printer_id));
     return;
   }
 
   web_ui()->CallJavascriptFunction("onExtensionCapabilitiesSet",
@@ skipping 26 matching lines @@
 
 void PrintPreviewHandler::UnregisterForGaiaCookieChanges() {
   if (gaia_cookie_manager_service_)
     gaia_cookie_manager_service_->RemoveObserver(this);
 }
 
 void PrintPreviewHandler::SetPdfSavedClosureForTesting(
     const base::Closure& closure) {
   pdf_file_saved_closure_ = closure;
 }