Convert WindowOpenDisposition to an enum class.

chrome/browser/android/tab_web_contents_delegate_android.cc

Index: chrome/browser/android/tab_web_contents_delegate_android.cc
diff --git a/chrome/browser/android/tab_web_contents_delegate_android.cc b/chrome/browser/android/tab_web_contents_delegate_android.cc
index 41507a31a533cc2178acb2282db3421e912c79e7..fa9eb21539cf571dabad5d76f8cdce9df5465e02 100644
--- a/chrome/browser/android/tab_web_contents_delegate_android.cc
+++ b/chrome/browser/android/tab_web_contents_delegate_android.cc
@@ -300,12 +300,12 @@ WebContents* TabWebContentsDelegateAndroid::OpenURLFromTab(
     WebContents* source,
     const content::OpenURLParams& params) {
   WindowOpenDisposition disposition = params.disposition;
-  if (!source || (disposition != CURRENT_TAB &&
-                  disposition != NEW_FOREGROUND_TAB &&
-                  disposition != NEW_BACKGROUND_TAB &&
-                  disposition != OFF_THE_RECORD &&
-                  disposition != NEW_POPUP &&
-                  disposition != NEW_WINDOW)) {
+  if (!source || (disposition != WindowOpenDisposition::CURRENT_TAB &&
+                  disposition != WindowOpenDisposition::NEW_FOREGROUND_TAB &&
+                  disposition != WindowOpenDisposition::NEW_BACKGROUND_TAB &&
+                  disposition != WindowOpenDisposition::OFF_THE_RECORD &&
+                  disposition != WindowOpenDisposition::NEW_POPUP &&
+                  disposition != WindowOpenDisposition::NEW_WINDOW)) {
     // We can't handle this here.  Give the parent a chance.
     return WebContentsDelegateAndroid::OpenURLFromTab(source, params);
   }
@@ -323,10 +323,10 @@ WebContents* TabWebContentsDelegateAndroid::OpenURLFromTab(
       PopupBlockerTabHelper::FromWebContents(source);
   DCHECK(popup_blocker_helper);
 
-  if ((params.disposition == NEW_POPUP ||
-       params.disposition == NEW_FOREGROUND_TAB ||
-       params.disposition == NEW_BACKGROUND_TAB ||
-       params.disposition == NEW_WINDOW) &&
+  if ((params.disposition == WindowOpenDisposition::NEW_POPUP ||
+       params.disposition == WindowOpenDisposition::NEW_FOREGROUND_TAB ||
+       params.disposition == WindowOpenDisposition::NEW_BACKGROUND_TAB ||
+       params.disposition == WindowOpenDisposition::NEW_WINDOW) &&
       !params.user_gesture &&
       !base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisablePopupBlocking)) {
@@ -336,7 +336,7 @@ WebContents* TabWebContentsDelegateAndroid::OpenURLFromTab(
     }
   }
 
-  if (disposition == CURRENT_TAB) {
+  if (disposition == WindowOpenDisposition::CURRENT_TAB) {
     // Only prerender for a current-tab navigation to avoid session storage
     // namespace issues.
     nav_params.target_contents = source;
@@ -369,9 +369,9 @@ void TabWebContentsDelegateAndroid::AddNewContents(
     bool user_gesture,
     bool* was_blocked) {
   // No code for this yet.
-  DCHECK_NE(disposition, SAVE_TO_DISK);
+  DCHECK_NE(disposition, WindowOpenDisposition::SAVE_TO_DISK);
   // Can't create a new contents for the current tab - invalid case.
-  DCHECK_NE(disposition, CURRENT_TAB);
+  DCHECK_NE(disposition, WindowOpenDisposition::CURRENT_TAB);
 
   TabHelpers::AttachTabHelpers(new_contents);