Replace NPObject usage in ppapi with gin

content/renderer/pepper/pepper_try_catch.h

Index: content/renderer/pepper/pepper_try_catch.h
diff --git a/content/renderer/pepper/pepper_try_catch.h b/content/renderer/pepper/pepper_try_catch.h
index 6b767175e2a3bc88d558d505f6b310e308239afa..459cb2c4c9c090071bccffd8f5f720b73a6e01ae 100644
--- a/content/renderer/pepper/pepper_try_catch.h
+++ b/content/renderer/pepper/pepper_try_catch.h
@@ -7,6 +7,7 @@
 
 #include "base/basictypes.h"
 #include "content/common/content_export.h"
+#include "content/renderer/pepper/v8_var_converter.h"
 #include "ppapi/c/pp_var.h"
 #include "ppapi/shared_impl/scoped_pp_var.h"
 #include "v8/include/v8.h"
@@ -19,10 +20,11 @@ class PepperPluginInstanceImpl;
 class CONTENT_EXPORT PepperTryCatch {
  public:
   PepperTryCatch(PepperPluginInstanceImpl* instance,
-                 bool convert_objects);
+                 V8VarConverter::AllowObjectVars convert_objects);
   virtual ~PepperTryCatch();
 
   virtual void SetException(const char* message) = 0;
+  virtual bool HasException() = 0;
   // Gets the plugin context. Virtual so it can be overriden for testing.
   virtual v8::Handle<v8::Context> GetContext();
 
@@ -34,26 +36,27 @@ class CONTENT_EXPORT PepperTryCatch {
  protected:
   PepperPluginInstanceImpl* instance_;
 
-  // Whether To/FromV8 should convert object vars. If set to false, an exception
-  // should be set if they are encountered during conversion.
-  bool convert_objects_;
+  // Whether To/FromV8 should convert object vars. If set to
+  // kDisallowObjectVars, an exception should be set if they are encountered
+  // during conversion.
+  V8VarConverter::AllowObjectVars convert_objects_;
 };
 
 // Catches var exceptions and emits a v8 exception.
 class PepperTryCatchV8 : public PepperTryCatch {
  public:
   PepperTryCatchV8(PepperPluginInstanceImpl* instance,
-                   bool convert_objects,
+                   V8VarConverter::AllowObjectVars convert_objects,
                    v8::Isolate* isolate);
   virtual ~PepperTryCatchV8();
 
-  bool HasException();
   bool ThrowException();
   void ThrowException(const char* message);
   PP_Var* exception() { return &exception_; }
 
   // PepperTryCatch
   virtual void SetException(const char* message) OVERRIDE;
+  virtual bool HasException() OVERRIDE;
 
  private:
   PP_Var exception_;
@@ -68,14 +71,12 @@ class PepperTryCatchVar : public PepperTryCatch {
   // is responsible for managing the lifetime of the exception. It is valid to
   //  pass NULL for |exception| in which case no exception will be set.
   PepperTryCatchVar(PepperPluginInstanceImpl* instance,
-                    bool convert_objects,
                     PP_Var* exception);
   virtual ~PepperTryCatchVar();
 
-  bool HasException();
-
   // PepperTryCatch
   virtual void SetException(const char* message) OVERRIDE;
+  virtual bool HasException() OVERRIDE;
 
  private:
   // Code which uses PepperTryCatchVar doesn't typically have a HandleScope,