Add explicit conversions methods for WebString <-> string16

content/child/blink_platform_impl.cc

 // Copyright 2014 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.
 
 #include "content/child/blink_platform_impl.h"
 
 #include <math.h>
 
 #include <memory>
 #include <vector>
@@ skipping 669 matching lines @@
 
   NOTREACHED() << "Unknown image resource " << name;
   return WebData();
 }
 
 WebString BlinkPlatformImpl::queryLocalizedString(
     WebLocalizedString::Name name) {
   int message_id = ToMessageID(name);
   if (message_id < 0)
     return WebString();
-  return GetContentClient()->GetLocalizedString(message_id);
+  return WebString::fromUTF16(
+      GetContentClient()->GetLocalizedString(message_id));
 }
 
 WebString BlinkPlatformImpl::queryLocalizedString(
     WebLocalizedString::Name name, int numeric_value) {
-  return queryLocalizedString(name, base::IntToString16(numeric_value));
+  return queryLocalizedString(
+      name, WebString::fromUTF16(base::IntToString16(numeric_value)));
 }
 
 WebString BlinkPlatformImpl::queryLocalizedString(
     WebLocalizedString::Name name, const WebString& value) {
   int message_id = ToMessageID(name);
   if (message_id < 0)
     return WebString();
-  return base::ReplaceStringPlaceholders(
-      GetContentClient()->GetLocalizedString(message_id), value, NULL);
+  return WebString::fromUTF16(base::ReplaceStringPlaceholders(
+      GetContentClient()->GetLocalizedString(message_id), value.utf16(), NULL));
 }
 
 WebString BlinkPlatformImpl::queryLocalizedString(
     WebLocalizedString::Name name,
     const WebString& value1,
     const WebString& value2) {
   int message_id = ToMessageID(name);
   if (message_id < 0)
     return WebString();
   std::vector<base::string16> values;
   values.reserve(2);
-  values.push_back(value1);
-  values.push_back(value2);
-  return base::ReplaceStringPlaceholders(
-      GetContentClient()->GetLocalizedString(message_id), values, NULL);
+  values.push_back(value1.utf16());
+  values.push_back(value2.utf16());
+  return WebString::fromUTF16(base::ReplaceStringPlaceholders(
+      GetContentClient()->GetLocalizedString(message_id), values, NULL));
 }
 
 blink::WebThread* BlinkPlatformImpl::compositorThread() const {
   return compositor_thread_;
 }
 
 blink::WebGestureCurve* BlinkPlatformImpl::createFlingAnimationCurve(
     blink::WebGestureDevice device_source,
     const blink::WebFloatPoint& velocity,
     const blink::WebSize& cumulative_scroll) {
@@ skipping 141 matching lines @@
   return WebString::fromUTF8(ui::KeycodeConverter::DomKeyToKeyString(
       static_cast<ui::DomKey>(dom_key)));
 }
 
 int BlinkPlatformImpl::domKeyEnumFromString(const WebString& key_string) {
   return static_cast<int>(
       ui::KeycodeConverter::KeyStringToDomKey(key_string.utf8()));
 }
 
 }  // namespace content