[mojo-edk] Expose portable API for platform handle wrapping

mojo/platform_handle/BUILD.gn

Index: mojo/platform_handle/BUILD.gn
diff --git a/mojo/platform_handle/BUILD.gn b/mojo/platform_handle/BUILD.gn
index 16829abed233401ddc007705323e1d523ee5cc87..a3710c9200bfdfdd71e2d2b42b2dcaa1a4bcdc28 100644
--- a/mojo/platform_handle/BUILD.gn
+++ b/mojo/platform_handle/BUILD.gn
@@ -2,75 +2,16 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-# See comments in mojo/public/c/system/BUILD.gn which this is based on.
-# Summary: depend on this target to use the platform handle functions without
-# linking against a specific implementation.
-# For component targets, add //mojo/platform_handle:for_component to your deps
-# section.
-# For shared_library targets (e.g., a Mojo App), add
-# //mojo/platform_handle:for_shared_library to your deps.
-source_set("platform_handle") {
-  sources = [
-    "platform_handle.h",
-    "platform_handle_functions.h",
-  ]
-  deps = [
-    "//mojo/public/c/system",
-  ]
-}
+# TODO(rockot): Remove this file. It's just a few dummy targets to avoid
+# updating lots of build files in the platform handle API change.
 
-component("platform_handle_impl") {
-  output_name = "platform_handle_impl"
-  public_deps = [
-    ":platform_handle",
-  ]
-  sources = [
-    "platform_handle_functions.cc",
-  ]
-  defines = [ "PLATFORM_HANDLE_IMPLEMENTATION" ]
-  deps = [
-    "//base",
-    "//mojo/edk/embedder:headers",
-    "//mojo/public/c/system:for_component",
-  ]
+group("platform_handle") {
 }
-
-source_set("platform_handle_thunks") {
-  public_deps = [
-    ":platform_handle",
-  ]
-  sources = [
-    "platform_handle_private_thunks.cc",
-    "platform_handle_private_thunks.h",
-  ]
-  defines = [ "PLATFORM_HANDLE_IMPLEMENTATION" ]
-  deps = [
-    "//mojo/public/c/system",
-  ]
+group("platform_handle_impl") {
+}
+group("platform_handle_thunks") {
 }
-
 group("for_shared_library") {
-  public_deps = [
-    ":platform_handle",
-  ]
-  if (is_component_build) {
-    deps = [
-      ":platform_handle_impl",
-    ]
-  } else {
-    deps = [
-      ":platform_handle_thunks",
-    ]
-  }
 }
-
 group("for_component") {
-  public_deps = [
-    ":platform_handle",
-  ]
-  if (is_component_build) {
-    deps = [
-      ":platform_handle_impl",
-    ]
-  }
 }