Initial version of an experimental Extensions Context Menu API....

chrome/browser/extensions/extension_function.h

 // Copyright (c) 2009 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_H_
 
 #include <string>
 #include <list>
 
 #include "base/values.h"
 #include "base/scoped_ptr.h"
 #include "base/ref_counted.h"
 #include "chrome/browser/extensions/extension_function_dispatcher.h"
 
 class ExtensionFunctionDispatcher;
 class Profile;
 class QuotaLimitHeuristic;
 
 #define EXTENSION_FUNCTION_VALIDATE(test) do { \
     if (!(test)) { \
       bad_message_ = true; \
       return false; \
     } \
   } while (0)
 
+#define EXTENSION_FUNCTION_ERROR(error) do { \
+    error_ = error; \
+    bad_message_ = true; \
+    return false; \
+  } while (0)
+
 #define DECLARE_EXTENSION_FUNCTION_NAME(name) \
   public: static const char* function_name() { return name; }
 
 // Abstract base class for extension functions the ExtensionFunctionDispatcher
 // knows how to dispatch to.
 //
 // TODO(aa): This will have to become reference counted when we introduce
 // APIs that live beyond a single stack frame.
 class ExtensionFunction : public base::RefCounted<ExtensionFunction> {
  public:
@@ skipping 154 matching lines @@
   }
 
  protected:
   virtual ~SyncExtensionFunction() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SyncExtensionFunction);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_H_