Update content_api to match naming conventions, style in ui_api.h

content/common/content_api.h

Index: content/common/content_api.h
diff --git a/content/common/content_api.h b/content/common/content_api.h
deleted file mode 100644
index 215569d5079b114bf6a8f92b18cbc8df2cf5221e..0000000000000000000000000000000000000000
--- a/content/common/content_api.h
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2011 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 CONTENT_COMMON_CONTENT_API_H_
-#define CONTENT_COMMON_CONTENT_API_H_
-#pragma once
-
-// Defines CONTENT_API so that funtionality implemented by the content module
-// can be exported to consumers, and CONTENT_TEST that allows unit tests to
-// access features not intended to be used directly by real consumers.
-#if defined(WIN32) && defined(CONTENT_DLL)
-#if defined(CONTENT_IMPLEMENTATION)
-#define CONTENT_API __declspec(dllexport)
-#define CONTENT_TEST __declspec(dllexport)
-#else
-#define CONTENT_API __declspec(dllimport)
-#define CONTENT_TEST __declspec(dllimport)
-#endif  // defined(CONTENT_IMPLEMENTATION)
-#else
-#define CONTENT_API
-#define CONTENT_TEST
-#endif
-
-#endif  // CONTENT_COMMON_CONTENT_API_H_