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

chrome/browser/ui/browser_init.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/ui/browser_init.h"
 
 #include <algorithm>   // For max().
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
@@ skipping 1019 matching lines @@
         return false;
     }
   }
 
   // If we have been invoked to display a desktop notification on behalf of
   // the service process, we do not want to open any browser windows.
   if (command_line.HasSwitch(switches::kNotifyCloudPrintTokenExpired)) {
     silent_launch = true;
     profile->GetCloudPrintProxyService()->ShowTokenExpiredNotification();
   }
+  // If we are just displaying a print dialog we shouldn't open browser
+  // windows.
+  if (command_line.HasSwitch(switches::kCloudPrintFile)) {

[sanjeevr, 2011/01/13 18:03:41]

Here also we should check if there is a path actually specified.

[abodenha, 2011/01/13 19:03:59]

Done.

+    silent_launch = true;
+  }
+
 
   if (command_line.HasSwitch(switches::kExplicitlyAllowedPorts)) {
     std::string allowed_ports =
         command_line.GetSwitchValueASCII(switches::kExplicitlyAllowedPorts);
     net::SetExplicitlyAllowedPorts(allowed_ports);
   }
 
 #if defined(OS_CHROMEOS)
   // The browser will be launched after the user logs in.
   if (command_line.HasSwitch(switches::kLoginManager) ||
@@ skipping 46 matching lines @@
     return false;
   automation->SetExpectedTabCount(expected_tabs);
 
   AutomationProviderList* list =
       g_browser_process->InitAutomationProviderList();
   DCHECK(list);
   list->AddProvider(automation);
 
   return true;
 }