testing adding an extension api

chrome/browser/extensions/api/myapi/myapi_api.h

+#include "chrome/common/extensions/api/myapi.h"
+#include "base/compiler_specific.h"
+#include "base/memory/ref_counted.h"
+#include "chrome/browser/extensions/event_router.h"
+#include "chrome/browser/extensions/extension_function.h"
+#include <stdlib.h>     /* strtol */
+#include "base/strings/string_number_conversions.h"
+#include "base/memory/singleton.h"
+#include "base/values.h"
+#include <string>
+#include "base/bind.h"
+#include "base/files/file_path.h"
+#include "base/format_macros.h"
+#include "base/logging.h"
+#include "base/memory/scoped_vector.h"
+#include "base/posix/eintr_wrapper.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/stringprintf.h"
+#include "base/threading/sequenced_worker_pool.h"
+#include "base/time.h"
+#include "base/values.h"
+// You must follow a naming convention which is ApiNameFunctionNameFunction,
+// in this case MyapiDoBazFunction. This is so that the generated code
+// can find your implementation.
+
+namespace extensions {  
+
+class MyapiDoBazFunction : public AsyncExtensionFunction {
+ public:
+  virtual ~MyapiDoBazFunction () {}
+
+ private:
+  // The MYAPI_DOBAZ entry is an enum you add right before ENUM_BOUNDARY
+  // in chrome/browser/extensions/extension_function_histogram_value.h
+  DECLARE_EXTENSION_FUNCTION("myapi.doBaz", MYAPI_DOBAZ);
+
+  virtual bool RunImpl() OVERRIDE {
+    // Args are passed in via the args_ member as a base::ListValue.
+    // Use the convenience member of the glue class to easily parse it.
+    scoped_ptr<api::myapi::DoBaz::Params> params(
+        api::myapi::DoBaz::Params::Create(*args_));
+    EXTENSION_FUNCTION_VALIDATE(params.get());
+   
+    api::myapi::BazResult result;
+    result.x = params->options.id;
+    base::StringToInt(params->options.s, &result.y);
+
+    // Use the convenience member of the glue class to easily serialize
+    // to base::Value. ExtensionFunction owns the resulting base::Value.
+    SetResult(api::myapi::DoBaz::Results::Create(result));
+    // Not needed if you're a SyncExtensionFunction 
+    // since it's set on the return value of RunImpl().
+    SendResponse(true /* success */);
+    return true;
+  }
+};
+
+}