Move mojo/services/public/cpp TypeConverters to mojo/converters.

mojo/examples/surfaces_app/BUILD.gn

Index: mojo/examples/surfaces_app/BUILD.gn
diff --git a/mojo/examples/surfaces_app/BUILD.gn b/mojo/examples/surfaces_app/BUILD.gn
index 448e954dd1ef4d9b0a9eae0bb2a161b6d9c2d8d8..5474752de41550550fc83f589d84be318cbd8178 100644
--- a/mojo/examples/surfaces_app/BUILD.gn
+++ b/mojo/examples/surfaces_app/BUILD.gn
@@ -27,11 +27,11 @@ shared_library("parent_app") {
     "//ui/gfx/geometry",
     "//mojo/application",
     "//mojo/common",
+    "//mojo/converters/geometry",
+    "//mojo/converters/surfaces",
     "//mojo/environment:chromium",
     "//mojo/public/c/system:for_shared_library",
     "//mojo/public/cpp/system",
-    "//mojo/services/public/cpp/geometry",
-    "//mojo/services/public/cpp/surfaces",
     "//mojo/services/public/interfaces/geometry",
     "//mojo/services/public/interfaces/gpu",
     "//mojo/services/public/interfaces/surfaces",
@@ -58,11 +58,11 @@ shared_library("child_app") {
     "//cc/surfaces",
     "//mojo/application",
     "//mojo/common",
+    "//mojo/converters/geometry",
+    "//mojo/converters/surfaces",
     "//mojo/environment:chromium",
     "//mojo/public/c/system:for_shared_library",
     "//mojo/public/cpp/bindings",
-    "//mojo/services/public/cpp/geometry",
-    "//mojo/services/public/cpp/surfaces",
     "//mojo/services/public/interfaces/geometry",
     "//mojo/services/public/interfaces/surfaces",
     "//mojo/services/public/interfaces/surfaces:surface_id",
@@ -91,6 +91,8 @@ shared_library("child_gl_app") {
     "//gpu/command_buffer/common",
     "//mojo/application",
     "//mojo/common",
+    "//mojo/converters/geometry",
+    "//mojo/converters/surfaces",
     "//mojo/environment:chromium",
     "//mojo/examples/sample_app:spinning_cube",
     "//mojo/public/c/system:for_shared_library",
@@ -98,8 +100,6 @@ shared_library("child_gl_app") {
     "//mojo/public/cpp/environment",
     "//mojo/public/cpp/system",
     "//mojo/public/gles2:for_shared_library",
-    "//mojo/services/public/cpp/geometry",
-    "//mojo/services/public/cpp/surfaces",
     "//mojo/services/public/interfaces/geometry",
     "//mojo/services/public/interfaces/gpu",
     "//mojo/services/public/interfaces/surfaces",