chrome: Initial step into building the views UI of Chrome Browser as a component.

chrome/browser/ui/views/chrome_views_export.h

Index: chrome/browser/ui/views/chrome_views_export.h
diff --git a/chrome/browser/ui/views/chrome_views_export.h b/chrome/browser/ui/views/chrome_views_export.h
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+++ b/chrome/browser/ui/views/chrome_views_export.h
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+// Copyright 2013 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_UI_VIEWS_CHROME_VIEWS_EXPORT_H_
+#define CHROME_BROWSER_UI_VIEWS_CHROME_VIEWS_EXPORT_H_
+
+// Defines CHROME_VIEWS_EXPORT so that APIs implemented by the browser_ui_views
+// library can be exported to consumers.
+
+#if defined(COMPONENT_BUILD)
+#if defined(WIN32)
+
+#if defined(CHROME_VIEWS_IMPLEMENTATION)
+#define CHROME_VIEWS_EXPORT __declspec(dllexport)
+#else
+#define CHROME_VIEWS_EXPORT __declspec(dllimport)
+#endif  // defined(CHROME_VIEWS_IMPLEMENTATION)
+
+#else  // !defined(WIN32)
+
+#if defined(CHROME_VIEWS_IMPLEMENTATION)
+#define CHROME_VIEWS_EXPORT __attribute__((visibility("default")))
+#else
+#define CHROME_VIEWS_EXPORT
+#endif
+
+#endif  // defined(WIN32)
+
+#else  // !defined(COMPONENT_BUILD)
+
+#define CHROME_VIEWS_EXPORT
+
+#endif  // defined(COMPONENT_BUILD)
+
+#endif  // CHROME_BROWSER_UI_VIEWS_CHROME_VIEWS_EXPORT_H_