Make media/capture gn and gyps produce components

media/capture/capture_export.h

Index: media/capture/capture_export.h
diff --git a/media/capture/capture_export.h b/media/capture/capture_export.h
new file mode 100644
index 0000000000000000000000000000000000000000..93c6511f4d08a6bdeb2a242da25eafbdf2713cbc
--- /dev/null
+++ b/media/capture/capture_export.h
@@ -0,0 +1,29 @@
+// Copyright 2016 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 MEDIA_CAPTURE_CAPTURE_EXPORT_H_
+#define MEDIA_CAPTURE_CAPTURE_EXPORT_H_
+
+#if defined(COMPONENT_BUILD)
+#if defined(WIN32)
+
+#if defined(CAPTURE_IMPLEMENTATION)
+#define CAPTURE_EXPORT __declspec(dllexport)
+#else
+#define CAPTURE_EXPORT __declspec(dllimport)
+#endif  // defined(CAPTURE_IMPLEMENTATION)
+
+#else  // defined(WIN32)
+#if defined(CAPTURE_IMPLEMENTATION)
+#define CAPTURE_EXPORT __attribute__((visibility("default")))
+#else
+#define CAPTURE_EXPORT
+#endif
+#endif
+
+#else  // defined(COMPONENT_BUILD)
+#define CAPTURE_EXPORT
+#endif
+
+#endif  // MEDIA_CAPTURE_CAPTURE_EXPORT_H_