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

Update content_api to match naming conventions, style in ui_api.h, make work for linux build as well.

R=jam@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7482022

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@97036 0039d316-1c4b-4281-b951-d872f2087c98

content/common/content_api.h → content/common/content_export.h

@@ -2,24 +2,25 @@
 // 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_
+#ifndef CONTENT_COMMON_CONTENT_EXPORT_H_
+#define CONTENT_COMMON_CONTENT_EXPORT_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(COMPONENT_BUILD)
+#if defined(WIN32)
+
 #if defined(CONTENT_IMPLEMENTATION)
-#define CONTENT_API __declspec(dllexport)
-#define CONTENT_TEST __declspec(dllexport)
+#define CONTENT_EXPORT __declspec(dllexport)
 #else
-#define CONTENT_API __declspec(dllimport)
-#define CONTENT_TEST __declspec(dllimport)
+#define CONTENT_EXPORT __declspec(dllimport)
 #endif  // defined(CONTENT_IMPLEMENTATION)
-#else
-#define CONTENT_API
-#define CONTENT_TEST
+
+#else // defined(WIN32)
+#define CONTENT_EXPORT __attribute__((visibility("default"))
+#endif
+
+#else // defined(COMPONENT_BUILD)
+#define CONTENT_EXPORT
 #endif
 
-#endif  // CONTENT_COMMON_CONTENT_API_H_
+#endif  // CONTENT_COMMON_CONTENT_EXPORT_H_

content/content_common.gypi

@@ -59,7 +59,7 @@
         'common/common_param_traits.h',
         'common/content_message_generator.cc',
         'common/content_message_generator.h',
-        'common/content_api.h',
+        'common/content_export.h',
         'common/content_client.cc',
         'common/content_client.h',
         'common/content_constants.cc',