Move some content url constants to /url.

content/browser/browser_url_handler_impl.cc

Index: content/browser/browser_url_handler_impl.cc
diff --git a/content/browser/browser_url_handler_impl.cc b/content/browser/browser_url_handler_impl.cc
index e5d1026e92d84061def886059e71e231dae637e0..36b56e01a165231a2b9dafaff57fabef65a6ca5f 100644
--- a/content/browser/browser_url_handler_impl.cc
+++ b/content/browser/browser_url_handler_impl.cc
@@ -12,6 +12,7 @@
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/common/url_constants.h"
 #include "url/gurl.h"
+#include "url/url_constants.h"
 
 namespace content {
 
@@ -24,13 +25,13 @@ static bool HandleViewSource(GURL* url, BrowserContext* browser_context) {
     // Bug 26129: limit view-source to view the content and not any
     // other kind of 'active' url scheme like 'javascript' or 'data'.
     static const char* const default_allowed_sub_schemes[] = {
-      kHttpScheme,
-      kHttpsScheme,
-      kFtpScheme,
-      kChromeDevToolsScheme,
-      kChromeUIScheme,
-      kFileScheme,
-      kFileSystemScheme
+        url::kHttpScheme,
+        url::kHttpsScheme,
+        kFtpScheme,
+        kChromeDevToolsScheme,
+        kChromeUIScheme,
+        kFileScheme,
+        kFileSystemScheme
     };
 
     // Merge all the schemes for which view-source is allowed by default, with