Redirect chrome://welcome to the new tab page.

chrome/browser/android/new_tab_page_url_handler.cc

Index: chrome/browser/android/new_tab_page_url_handler.cc
diff --git a/chrome/browser/android/new_tab_page_url_handler.cc b/chrome/browser/android/new_tab_page_url_handler.cc
index 8561c228c60d8a0094c6aa1643bc512a0b64bf2b..da57f5798b37f67b91e57072eec7c7da0e327d65 100644
--- a/chrome/browser/android/new_tab_page_url_handler.cc
+++ b/chrome/browser/android/new_tab_page_url_handler.cc
@@ -13,6 +13,7 @@
 
 namespace {
 const char kBookmarkFolderPath[] = "folder/";
+const char kLegacyWelcomeHost[] = "welcome";
 }
 
 namespace chrome {
@@ -20,10 +21,14 @@ namespace android {
 
 bool HandleAndroidNativePageURL(GURL* url,
                                 content::BrowserContext* browser_context) {
-  if (url->SchemeIs(content::kChromeUIScheme) &&
-      url->host() == chrome::kChromeUINewTabHost) {
-    *url = GURL(chrome::kChromeUINativeNewTabURL);
-    return true;
+  if (url->SchemeIs(content::kChromeUIScheme)) {
+    // TODO(newt): stop redirecting chrome://welcome to chrome-native://newtab
+    // when M39 is a distant memory. http://crbug.com/455427
+    if (url->host() == chrome::kChromeUINewTabHost ||
+        url->host() == kLegacyWelcomeHost) {
+      *url = GURL(chrome::kChromeUINativeNewTabURL);
+      return true;
+    }
   }
 
   if (url->SchemeIs(chrome::kChromeNativeScheme) &&