[Translate] Migrate IPCs to Mojo interfaces.

components/translate/content/common/translate.typemap

Index: components/translate/content/common/translate.typemap
diff --git a/components/translate/content/common/translate.typemap b/components/translate/content/common/translate.typemap
new file mode 100644
index 0000000000000000000000000000000000000000..3aafd6a88ea10bee0fbd228f7ba4e5a2769ee86b
--- /dev/null
+++ b/components/translate/content/common/translate.typemap
@@ -0,0 +1,23 @@
+# 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.
+
+mojom = "//components/translate/content/common/translate.mojom"
+public_headers = [
+  "//components/translate/core/common/language_detection_details.h",
+  "//components/translate/core/common/translate_errors.h",
+]
+traits_headers =
+    [ "//components/translate/content/common/translate_struct_traits.h" ]
+sources = [
+  "//components/translate/content/common/translate_struct_traits.cc",
+]
+deps = [
+  "//base",
+  "//components/translate/core/common",
+]
+
+type_mappings = [
+  "translate.mojom.LanguageDetectionDetails=translate::LanguageDetectionDetails",
+  "translate.mojom.TranslateError=translate::TranslateErrors::Type",
+]