Remove support for the QuickDraw NPAPI drawing model

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 780 matching lines @@
       // return the drawing model that was negotiated when we initialized.
       scoped_refptr<PluginInstance> plugin(FindInstance(id));
       if (!plugin.get()) {
         NOTREACHED();
         return NPERR_INVALID_INSTANCE_ERROR;
       }
       *reinterpret_cast<int*>(value) = plugin->drawing_model();
       rv = NPERR_NO_ERROR;
       break;
     }
-#ifndef NP_NO_QUICKDRAW
-    case NPNVsupportsQuickDrawBool: {
-      // We do not admit to supporting the QuickDraw drawing model. The logic
-      // here is that our QuickDraw plugin support is so rudimentary that we
-      // only want to use it as a fallback to keep plugins from crashing: if a
-      // plugin knows enough to ask, we want them to use CoreGraphics.
-      NPBool* supports_qd = reinterpret_cast<NPBool*>(value);
-      *supports_qd = false;
-      rv = NPERR_NO_ERROR;
-      break;
-    }
-#endif
     case NPNVsupportsCoreGraphicsBool:
 #ifndef NP_NO_CARBON
     case NPNVsupportsCarbonBool:
 #endif
     case NPNVsupportsCocoaBool: {
-      // we do support these drawing and event models.
+      // These drawing and event models are always supported.
       NPBool* supports_model = reinterpret_cast<NPBool*>(value);
       *supports_model = true;
       rv = NPERR_NO_ERROR;
       break;
     }
     case NPNVsupportsCoreAnimationBool: {
       // We only support the Core Animation model on 10.6 and higher
       // TODO(stuartmorgan): Once existing CA plugins have implemented the
       // invalidating version, remove support for this one.
       NPBool* supports_model = reinterpret_cast<NPBool*>(value);
       *supports_model = webkit::npapi::SupportsSharingAcceleratedSurfaces() ?
           true : false;
       rv = NPERR_NO_ERROR;
       break;
     }
     case NPNVsupportsInvalidatingCoreAnimationBool: {
       // The composited code path for this model only works on 10.6 and higher.
       // The old direct-to-screen code path supports 10.5.
       NPBool* supports_model = reinterpret_cast<NPBool*>(value);
       bool composited = webkit::npapi::UsingCompositedCoreAnimationPlugins();
       *supports_model = composited ?
           webkit::npapi::SupportsSharingAcceleratedSurfaces() : true;
       rv = NPERR_NO_ERROR;
       break;
     }
+#ifndef NP_NO_QUICKDRAW
+    case NPNVsupportsQuickDrawBool:
+#endif
     case NPNVsupportsOpenGLBool: {
-      // This drawing model was never widely supported, and we don't plan to
-      // support it.
+      // These drawing models are never supported. OpenGL was never widely
+      // supported, and QuickDraw has been deprecated for years.
       NPBool* supports_model = reinterpret_cast<NPBool*>(value);
       *supports_model = false;
       rv = NPERR_NO_ERROR;
       break;
     }
     case NPNVsupportsCompositingCoreAnimationPluginsBool: {
       NPBool* supports_compositing = reinterpret_cast<NPBool*>(value);
       *supports_compositing =
           webkit::npapi::UsingCompositedCoreAnimationPlugins();
       rv = NPERR_NO_ERROR;
@@ skipping 295 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"