Decompose //extensions/browser/BUILD.gn

extensions/browser/guest_view/mime_handler_view/BUILD.gn

Index: extensions/browser/guest_view/mime_handler_view/BUILD.gn
diff --git a/extensions/browser/guest_view/mime_handler_view/BUILD.gn b/extensions/browser/guest_view/mime_handler_view/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..cf30c88a05413b8b532f424c8c33686abf4ecbb2
--- /dev/null
+++ b/extensions/browser/guest_view/mime_handler_view/BUILD.gn
@@ -0,0 +1,20 @@
+# 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.
+
+source_set("mime_handler_view") {
+  sources = [
+    "mime_handler_stream_manager.cc",
+    "mime_handler_stream_manager.h",
+    "mime_handler_view_constants.cc",
+    "mime_handler_view_constants.h",
+    "mime_handler_view_guest.cc",
+    "mime_handler_view_guest.h",
+    "mime_handler_view_guest_delegate.cc",
+    "mime_handler_view_guest_delegate.h",
+  ]
+
+  deps = [
+    "//content/public/common",
+  ]
+}