browser-plugin: Refactor the code for binding methods on the plugin.

content/renderer/browser_plugin/browser_plugin_bindings.h

Index: content/renderer/browser_plugin/browser_plugin_bindings.h
diff --git a/content/renderer/browser_plugin/browser_plugin_bindings.h b/content/renderer/browser_plugin/browser_plugin_bindings.h
index 2d9fa2d90aff5bf389b28fd8064b04f550321ac6..a84580f1498a8daaf4bf7be3a9aa065367e73bcf 100644
--- a/content/renderer/browser_plugin/browser_plugin_bindings.h
+++ b/content/renderer/browser_plugin/browser_plugin_bindings.h
@@ -5,6 +5,7 @@
 #ifndef CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_BINDINGS_H__
 #define CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_BINDINGS_H__
 
+#include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
 #include "ppapi/shared_impl/resource.h"
 #include "third_party/npapi/bindings/npruntime.h"
@@ -15,6 +16,10 @@ class WebSerializedScriptValue;
 
 namespace content {
 
+namespace internal {
+class BrowserPluginMethodBinding;
+}
+
 class BrowserPlugin;
 
 class BrowserPluginBindings {
@@ -36,11 +41,21 @@ class BrowserPluginBindings {
   NPObject* np_object() const { return np_object_; }
 
   BrowserPlugin* instance() const { return instance_; }
+
+  bool HasMethod(NPIdentifier name) const;
+
+  bool InvokeMethod(NPIdentifier name,
+                    const NPVariant* args,
+                    uint32 arg_count,
+                    NPVariant* result);
  private:
   BrowserPlugin* instance_;
   // The NPObject we use to expose postMessage to JavaScript.
   BrowserPluginNPObject* np_object_;
 
+  typedef ScopedVector<internal::BrowserPluginMethodBinding> BindingList;
+  BindingList method_bindings_;
+
   // This is used to ensure pending tasks will not fire after this object is
   // destroyed.
   base::WeakPtrFactory<BrowserPluginBindings> weak_ptr_factory_;