Add a command line flag to specify the minimum flash version implementing the NPP_ClearSiteData API.

chrome/browser/plugin_data_remover.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/plugin_data_remover.h"
 
+#include "base/command_line.h"
 #include "base/message_loop_proxy.h"
 #include "base/metrics/histogram.h"
 #include "base/version.h"
 #include "chrome/browser/browser_thread.h"
 #include "chrome/browser/plugin_service.h"
+#include "chrome/common/chrome_switches.h"
 #include "chrome/common/plugin_messages.h"
 #include "webkit/plugins/npapi/plugin_group.h"
 #include "webkit/plugins/npapi/plugin_list.h"
 
 #if defined(OS_POSIX)
 #include "ipc/ipc_channel_posix.h"
 #endif
 
 namespace {
 const char* kFlashMimeType = "application/x-shockwave-flash";
@@ skipping 127 matching lines @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   bool allow_wildcard = false;
   webkit::npapi::WebPluginInfo plugin;
   std::string mime_type;
   if (!webkit::npapi::PluginList::Singleton()->GetPluginInfo(
           GURL(), kFlashMimeType, allow_wildcard, &plugin, &mime_type)) {
     return false;
   }
   scoped_ptr<Version> version(
       webkit::npapi::PluginGroup::CreateVersionFromString(plugin.version));
-  scoped_ptr<Version> min_version(
-      Version::GetVersionFromString(kMinFlashVersion));
+  scoped_ptr<Version> min_version(Version::GetVersionFromString(
+      CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
+          switches::kMinClearSiteDataFlashVersion)));
+  if (!min_version.get())
+    min_version.reset(Version::GetVersionFromString(kMinFlashVersion));
   return plugin.enabled &&
          version.get() &&
          min_version->CompareTo(*version) == -1;
 }