Modify chrome to accept a pdf file on the command line and upload it to Cloud...

chrome/browser/printing/print_dialog_cloud_unittest.cc

 // Copyright (c) 2010 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/printing/print_dialog_cloud.h"
 #include "chrome/browser/printing/print_dialog_cloud_internal.h"
 
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
@@ skipping 279 matching lines @@
  protected:
   virtual void SetUp() {
     FilePath mock_path;
     string16 mock_title;
     MockCloudPrintFlowHandler* handler =
         new MockCloudPrintFlowHandler(mock_path, mock_title);
     mock_flow_handler_ = handler->AsWeakPtr();
     EXPECT_CALL(*mock_flow_handler_.get(), SetDialogDelegate(_));
     EXPECT_CALL(*mock_flow_handler_.get(), SetDialogDelegate(NULL));
     delegate_.reset(new CloudPrintHtmlDialogDelegate(
-        mock_flow_handler_.get(), 100, 100, std::string()));
+        mock_flow_handler_.get(), 100, 100, std::string(), true));
   }
 
   virtual void TearDown() {
     delegate_.reset();
     if (mock_flow_handler_)
       delete mock_flow_handler_.get();
   }
 
   MessageLoopForUI message_loop_;
   BrowserThread ui_thread_;
@@ skipping 22 matching lines @@
   delegate_->GetDOMMessageHandlers(&handlers);
   delegate_.reset();
   EXPECT_THAT(mock_flow_handler_.get(), NotNull());
 }
 
 // Testing for ExternalHtmlDialogUI needs a mock TabContents, mock
 // CloudPrintHtmlDialogDelegate (provided through the mock
 // tab_contents)
 
 // Testing for PrintDialogCloud needs a mock Browser.