Move elide_url to its own component

components/secure_display/secure_display_export.h

Index: components/secure_display/secure_display_export.h
diff --git a/components/secure_display/secure_display_export.h b/components/secure_display/secure_display_export.h
new file mode 100644
index 0000000000000000000000000000000000000000..bc158ebd42f51fcfa5bef7cbd9656d508c78c13e
--- /dev/null
+++ b/components/secure_display/secure_display_export.h
@@ -0,0 +1,29 @@
+// Copyright 2015 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 COMPONENTS_SECURE_DISPLAY_SECURE_DISPLAY_EXPORT_H_
+#define COMPONENTS_SECURE_DISPLAY_SECURE_DISPLAY_EXPORT_H_
+
+#if defined(COMPONENT_BUILD)
+#if defined(WIN32)
+
+#if defined(SECURE_DISPLAY_IMPLEMENTATION)
+#define SECURE_DISPLAY_EXPORT __declspec(dllexport)
+#else
+#define SECURE_DISPLAY_EXPORT __declspec(dllimport)
+#endif  // defined(SECURE_DISPLAY_IMPLEMENTATION)
+
+#else  // defined(WIN32)
+#if defined(SECURE_DISPLAY_IMPLEMENTATION)
+#define SECURE_DISPLAY_EXPORT __attribute__((visibility("default")))
+#else
+#define SECURE_DISPLAY_EXPORT
+#endif
+#endif
+
+#else  // defined(COMPONENT_BUILD)
+#define SECURE_DISPLAY_EXPORT
+#endif
+
+#endif  // COMPONENTS_SECURE_DISPLAY_SECURE_DISPLAY_EXPORT_H_