Simplify window_open_disposition.cc since we only require conversion from...

webkit/glue/window_open_disposition.cc

 // Copyright (c) 2009 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 "webkit/glue/window_open_disposition.h"
 
 #include "base/logging.h"
 
-// The macro dance here allows us to only express the mapping once.
-#define MAPPINGS(MAP) \
-  MAP(WebNavigationPolicyIgnore, IGNORE_ACTION) \
-  MAP(WebNavigationPolicyDownload, SAVE_TO_DISK) \
-  MAP(WebNavigationPolicyCurrentTab, CURRENT_TAB) \
-  MAP(WebNavigationPolicyNewBackgroundTab, NEW_BACKGROUND_TAB) \
-  MAP(WebNavigationPolicyNewForegroundTab, NEW_FOREGROUND_TAB) \
-  MAP(WebNavigationPolicyNewWindow, NEW_WINDOW) \
-  MAP(WebNavigationPolicyNewPopup, NEW_POPUP)
-
-#define POLICY_TO_DISPOSITION(policy, disposition) \
-  case WebKit::policy: return disposition;
-
 WindowOpenDisposition NavigationPolicyToDisposition(
     WebKit::WebNavigationPolicy policy) {
   switch (policy) {
-    MAPPINGS(POLICY_TO_DISPOSITION)
+    case WebKit::WebNavigationPolicyIgnore:
+      return IGNORE_ACTION;
+    case WebKit::WebNavigationPolicyDownload:
+      return SAVE_TO_DISK;
+    case WebKit::WebNavigationPolicyCurrentTab:
+      return CURRENT_TAB;
+    case WebKit::WebNavigationPolicyNewBackgroundTab:
+      return NEW_BACKGROUND_TAB;
+    case WebKit::WebNavigationPolicyNewForegroundTab:
+      return NEW_FOREGROUND_TAB;
+    case WebKit::WebNavigationPolicyNewWindow:
+      return NEW_WINDOW;
+    case WebKit::WebNavigationPolicyNewPopup:
+      return NEW_POPUP;
   default:
     NOTREACHED() << "Unexpected WebNavigationPolicy";
     return IGNORE_ACTION;
   }
 }
-
-#define DISPOSITION_TO_POLICY(policy, disposition) \
-  case disposition: return WebKit::policy;
-
-WebKit::WebNavigationPolicy DispositionToNavigationPolicy(
-    WindowOpenDisposition disposition) {
-  switch (disposition) {
-    MAPPINGS(DISPOSITION_TO_POLICY)
-  default:
-    NOTREACHED() << "Unexpected WindowOpenDisposition";
-    return WebKit::WebNavigationPolicyIgnore;
-  }
-}