Append a number to make app shortcut name unique.

chrome/browser/web_applications/web_app.cc

 // Copyright (c) 2009 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/web_applications/web_app.h"
 
 #if defined(OS_WIN)
 #include <ShellAPI.h>
 #endif  // defined(OS_WIN)
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/file_util.h"
 #include "base/md5.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/thread.h"
 #include "base/scoped_ptr.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chrome_thread.h"
+#include "chrome/browser/download/download_util.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_plugin_util.h"
 #include "chrome/common/notification_registrar.h"
 #include "chrome/common/notification_service.h"
 #include "chrome/common/url_constants.h"
 #include "webkit/glue/dom_operations.h"
 
@@ skipping 337 matching lines @@
 
   // Sanitize description
   if (shortcut_info_.description.length() >= MAX_PATH)
     shortcut_info_.description.resize(MAX_PATH - 1);
 
   // Generates app id from web app url and profile path.
   std::wstring app_id = ShellIntegration::GetAppId(
       web_app::GenerateApplicationNameFromURL(shortcut_info_.url).c_str(),
       profile_path_);
 
+  FilePath shortcut_to_pin;
+
   bool success = true;
   for (size_t i = 0; i < shortcut_paths.size(); ++i) {
     FilePath shortcut_file = shortcut_paths[i].Append(file_name).
         ReplaceExtension(FILE_PATH_LITERAL(".lnk"));
+
+    int unique_number = download_util::GetUniquePathNumber(shortcut_file);
+    if (unique_number == -1) {
+      success = false;
+      continue;
+    } else if (unique_number > 0) {
+      download_util::AppendNumberToPath(&shortcut_file, unique_number);
+    }
+
     success &= file_util::CreateShortcutLink(chrome_exe.c_str(),
         shortcut_file.value().c_str(),
         chrome_folder.c_str(),
         wide_switchs.c_str(),
         shortcut_info_.description.c_str(),
         icon_file.value().c_str(),
         0,
         app_id.c_str());
+
+    // Any shortcut would work for the pinning. We use the first one.
+    if (success && pin_to_taskbar && shortcut_to_pin.empty())
+      shortcut_to_pin = shortcut_file;
   }
 
   if (success && pin_to_taskbar) {
-    // Any shortcut would work for the pinning. We use the first one.
-    FilePath shortcut_file = shortcut_paths[0].Append(file_name).
-        ReplaceExtension(FILE_PATH_LITERAL(".lnk"));
-    success &= file_util::TaskbarPinShortcutLink(shortcut_file.value().c_str());
+    if (!shortcut_to_pin.empty()) {
+      success &= file_util::TaskbarPinShortcutLink(
+          shortcut_to_pin.value().c_str());
+    } else {
+      NOTREACHED();
+      success = false;
+    }
   }
 
   return success;
 #else
   NOTIMPLEMENTED();
   return false;
 #endif
 }
 
 #if defined(OS_WIN)
@@ skipping 329 matching lines @@
 
 void UpdateShortcutForTabContents(TabContents* tab_contents) {
 #if defined(OS_WIN)
   // UpdateShortcutWorker will delete itself when it's done.
   UpdateShortcutWorker* worker = new UpdateShortcutWorker(tab_contents);
   worker->Run();
 #endif  // defined(OS_WIN)
 }
 
 };  // namespace web_app