Create //ui/base/ime:text_input_base target.

ui/base/ime/BUILD.gn

 # Copyright 2015 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.
 
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 
+source_set("text_input_types") {

[sadrul, 2016/01/26 17:50:38]

I think you want group() here, instead of source_set()

[kylechar, 2016/01/26 17:58:34]

Discussed in person. Will leave it as source_set.

[spang, 2016/01/26 18:00:09]

group() doesn't have have sources = [...]

I think it has to be static_library or source_set, but I'm not sure it matters
which. I cannot think of any difference with only headers in "sources".

+  sources = [
+    "text_input_flags.h",
+    "text_input_mode.h",
+    "text_input_type.h",
+  ]
+}
+
 component("ime") {
   output_name = "ui_base_ime"
   sources = [
     "candidate_window.cc",
     "candidate_window.h",
     "chromeos/character_composer.cc",
     "chromeos/character_composer.h",
     "chromeos/component_extension_ime_manager.cc",
     "chromeos/component_extension_ime_manager.h",
     "chromeos/extension_ime_util.cc",
@@ skipping 60 matching lines @@
     "linux/fake_input_method_context.h",
     "linux/fake_input_method_context_factory.cc",
     "linux/fake_input_method_context_factory.h",
     "linux/linux_input_method_context.h",
     "linux/linux_input_method_context_factory.cc",
     "linux/linux_input_method_context_factory.h",
     "mock_input_method.cc",
     "mock_input_method.h",
     "text_input_client.cc",
     "text_input_client.h",
-    "text_input_type.h",
     "ui_base_ime_export.h",
     "win/imm32_manager.cc",
     "win/imm32_manager.h",
     "win/tsf_input_scope.cc",
     "win/tsf_input_scope.h",
   ]
 
   # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
   configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
 
   defines = [ "UI_BASE_IME_IMPLEMENTATION" ]
 
   deps = [
     "//base",
     "//base:i18n",
     "//base/third_party/dynamic_annotations",
     "//net",
     "//third_party/icu",
     "//ui/base",
     "//ui/events",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//url",
   ]
 
+  public_deps = [
+    ":text_input_types",
+  ]
+
   if (!use_aura || (!is_linux && !use_ozone)) {
     sources -= [
       "input_method_auralinux.cc",
       "input_method_auralinux.h",
     ]
   }
 
   if (use_aura && is_android) {
     sources += [
       "input_method_android.cc",
@@ skipping 50 matching lines @@
     libs = [ "imm32.lib" ]
   }
 
   if (use_ozone) {
     deps += [
       "//ui/events/ozone:events_ozone_layout",
       "//ui/ozone",
     ]
   }
 }