ScreenContext is moved to components/login.

components/login/base_screen_handler_utils.h

Index: components/login/base_screen_handler_utils.h
diff --git a/chrome/browser/ui/webui/chromeos/login/base_screen_handler_utils.h b/components/login/base_screen_handler_utils.h
similarity index 54%
rename from chrome/browser/ui/webui/chromeos/login/base_screen_handler_utils.h
rename to components/login/base_screen_handler_utils.h
index abe429882a2f1d0dda2acc961760c22dfb2c28cb..63e551296a53a77ed4136cc364e6130ba3d09c7d 100644
--- a/chrome/browser/ui/webui/chromeos/login/base_screen_handler_utils.h
+++ b/components/login/base_screen_handler_utils.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_UTILS_H_
-#define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_UTILS_H_
+#ifndef COMPONENTS_LOGIN_BASE_SCREEN_HANDLER_UTILS_H_
+#define COMPONENTS_LOGIN_BASE_SCREEN_HANDLER_UTILS_H_
 
 #include <cstddef>
 #include <string>
@@ -12,33 +12,35 @@
 #include "base/logging.h"
 #include "base/strings/string16.h"
 #include "base/values.h"
+#include "components/login/login_export.h"
 
-namespace chromeos {
+namespace login {
 
 typedef std::vector<std::string> StringList;
 typedef std::vector<base::string16> String16List;
 
-template<typename T>
-struct UnwrapConstRef {
+template <typename T>
+struct LOGIN_EXPORT UnwrapConstRef {
   typedef T Type;
 };
 
-template<typename T>
-struct UnwrapConstRef<const T&> {
+template <typename T>
+struct LOGIN_EXPORT UnwrapConstRef<const T&> {
   typedef T Type;
 };
 
-bool ParseValue(const base::Value* value, bool* out_value);
-bool ParseValue(const base::Value* value, int* out_value);
-bool ParseValue(const base::Value* value, double* out_value);
-bool ParseValue(const base::Value* value, std::string* out_value);
-bool ParseValue(const base::Value* value, base::string16* out_value);
-bool ParseValue(const base::Value* value,
-                const base::DictionaryValue** out_value);
-bool ParseValue(const base::Value* value, StringList* out_value);
-bool ParseValue(const base::Value* value, String16List* out_value);
-
-template<typename T>
+bool LOGIN_EXPORT ParseValue(const base::Value* value, bool* out_value);
+bool LOGIN_EXPORT ParseValue(const base::Value* value, int* out_value);
+bool LOGIN_EXPORT ParseValue(const base::Value* value, double* out_value);
+bool LOGIN_EXPORT ParseValue(const base::Value* value, std::string* out_value);
+bool LOGIN_EXPORT
+    ParseValue(const base::Value* value, base::string16* out_value);
+bool LOGIN_EXPORT ParseValue(const base::Value* value,
+                             const base::DictionaryValue** out_value);
+bool LOGIN_EXPORT ParseValue(const base::Value* value, StringList* out_value);
+bool LOGIN_EXPORT ParseValue(const base::Value* value, String16List* out_value);
+
+template <typename T>
 inline bool GetArg(const base::ListValue* args, size_t index, T* out_value) {
   const base::Value* value;
   if (!args->Get(index, &value))
@@ -46,21 +48,21 @@ inline bool GetArg(const base::ListValue* args, size_t index, T* out_value) {
   return ParseValue(value, out_value);
 }
 
-base::FundamentalValue MakeValue(bool v);
-base::FundamentalValue MakeValue(int v);
-base::FundamentalValue MakeValue(double v);
-base::StringValue MakeValue(const std::string& v);
-base::StringValue MakeValue(const base::string16& v);
+base::FundamentalValue LOGIN_EXPORT MakeValue(bool v);
+base::FundamentalValue LOGIN_EXPORT MakeValue(int v);
+base::FundamentalValue LOGIN_EXPORT MakeValue(double v);
+base::StringValue LOGIN_EXPORT MakeValue(const std::string& v);
+base::StringValue LOGIN_EXPORT MakeValue(const base::string16& v);
 
-template<typename T>
+template <typename T>
 inline const T& MakeValue(const T& v) {
   return v;
 }
 
-void CallbackWrapper0(base::Callback<void()> callback,
-                      const base::ListValue* args);
+void LOGIN_EXPORT CallbackWrapper0(base::Callback<void()> callback,
+                                   const base::ListValue* args);
 
-template<typename A1>
+template <typename A1>
 void CallbackWrapper1(base::Callback<void(A1)> callback,
                       const base::ListValue* args) {
   DCHECK(args);
@@ -73,7 +75,7 @@ void CallbackWrapper1(base::Callback<void(A1)> callback,
   callback.Run(arg1);
 }
 
-template<typename A1, typename A2>
+template <typename A1, typename A2>
 void CallbackWrapper2(base::Callback<void(A1, A2)> callback,
                       const base::ListValue* args) {
   DCHECK(args);
@@ -87,7 +89,7 @@ void CallbackWrapper2(base::Callback<void(A1, A2)> callback,
   callback.Run(arg1, arg2);
 }
 
-template<typename A1, typename A2, typename A3>
+template <typename A1, typename A2, typename A3>
 void CallbackWrapper3(base::Callback<void(A1, A2, A3)> callback,
                       const base::ListValue* args) {
   DCHECK(args);
@@ -95,8 +97,7 @@ void CallbackWrapper3(base::Callback<void(A1, A2, A3)> callback,
   typename UnwrapConstRef<A1>::Type arg1;
   typename UnwrapConstRef<A2>::Type arg2;
   typename UnwrapConstRef<A3>::Type arg3;
-  if (!GetArg(args, 0, &arg1) ||
-      !GetArg(args, 1, &arg2) ||
+  if (!GetArg(args, 0, &arg1) || !GetArg(args, 1, &arg2) ||
       !GetArg(args, 2, &arg3)) {
     NOTREACHED();
     return;
@@ -104,7 +105,7 @@ void CallbackWrapper3(base::Callback<void(A1, A2, A3)> callback,
   callback.Run(arg1, arg2, arg3);
 }
 
-template<typename A1, typename A2, typename A3, typename A4>
+template <typename A1, typename A2, typename A3, typename A4>
 void CallbackWrapper4(base::Callback<void(A1, A2, A3, A4)> callback,
                       const base::ListValue* args) {
   DCHECK(args);
@@ -113,16 +114,14 @@ void CallbackWrapper4(base::Callback<void(A1, A2, A3, A4)> callback,
   typename UnwrapConstRef<A2>::Type arg2;
   typename UnwrapConstRef<A3>::Type arg3;
   typename UnwrapConstRef<A4>::Type arg4;
-  if (!GetArg(args, 0, &arg1) ||
-      !GetArg(args, 1, &arg2) ||
-      !GetArg(args, 2, &arg3) ||
-      !GetArg(args, 3, &arg4)) {
+  if (!GetArg(args, 0, &arg1) || !GetArg(args, 1, &arg2) ||
+      !GetArg(args, 2, &arg3) || !GetArg(args, 3, &arg4)) {
     NOTREACHED();
     return;
   }
   callback.Run(arg1, arg2, arg3, arg4);
 }
 
-}  // namespace chromeos
+}  // namespace login
 
-#endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_BASE_SCREEN_HANDLER_UTILS_H_
+#endif  // COMPONENTS_LOGIN_BASE_SCREEN_HANDLER_UTILS_H_