Fix Windows build warning LNK4217 for blink_platform.dll.

third_party/WebKit/Source/platform/mojo/BUILD.gn

Index: third_party/WebKit/Source/platform/mojo/BUILD.gn
diff --git a/third_party/WebKit/Source/platform/mojo/BUILD.gn b/third_party/WebKit/Source/platform/mojo/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..4cb83f320e0e93e84459d789560b60d70807808f
--- /dev/null
+++ b/third_party/WebKit/Source/platform/mojo/BUILD.gn
@@ -0,0 +1,15 @@
+# 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("geometry_struct_traits") {
+  sources = [
+    "GeometryStructTraits.cpp",
+    "GeometryStructTraits.h",
+  ]
+  public_deps = [
+    "//mojo/public/cpp/bindings:wtf_support",
+    "//ui/gfx/geometry",
+    "//ui/gfx/geometry/mojo:mojo_blink__generator",

[yzshen1, 2016/12/19 17:34:56]

Can it depend on ui/gfx/geometry/mojo:mojo_shared_cpp_sources? __generator is
not meant to be a public-facing target.

You need to change the include in GeometryStructTraits.h to
geometry.mojom-shared.h. And I don't think you need
"//mojo/public/cpp/bindings:wtf_support" either.

[leonhsl(Using Gerrit), 2016/12/20 03:00:19]

Done and Thanks. Understood more about traits now!

+  ]
+}