mac: Delete more 10.5-only code

webkit/plugins/npapi/plugin_host.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 "webkit/plugins/npapi/plugin_host.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 40 matching lines @@
     return NULL;
   }
   return reinterpret_cast<PluginInstance*>(id->ndata);
 }
 
 #if defined(OS_MACOSX)
 // Returns true if Core Animation plugins are supported. This requires that the
 // OS supports shared accelerated surfaces via IOSurface. This is true on Snow
 // Leopard and higher.
 static bool SupportsCoreAnimationPlugins() {
-  if (base::mac::IsOSLeopardOrEarlier())
-    return false;
   if (CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kDisableCoreAnimationPlugins))
     return false;
   // We also need to be running with desktop GL and not the software
   // OSMesa renderer in order to share accelerated surfaces between
   // processes.
   gfx::GLImplementation implementation = gfx::GetGLImplementation();
   if (implementation == gfx::kGLImplementationNone) {
     // Not initialized yet.
     if (!gfx::GLSurface::InitializeOneOff()) {
@@ skipping 1055 matching lines @@
 }
 
 void NPN_URLRedirectResponse(NPP instance, void* notify_data, NPBool allow) {
   scoped_refptr<PluginInstance> plugin(FindInstance(instance));
   if (plugin.get()) {
     plugin->URLRedirectResponse(!!allow, notify_data);
   }
 }
 
 }  // extern "C"