Move user_agent code from webkit/ to content/.

apps/shell/common/shell_content_client.cc

Index: apps/shell/common/shell_content_client.cc
diff --git a/apps/shell/common/shell_content_client.cc b/apps/shell/common/shell_content_client.cc
index 6b5446f20082e44ccda6bd51c41f67116f2bb6d8..96e1875a1a09c3a86a960771f0d25486bf7cf5fe 100644
--- a/apps/shell/common/shell_content_client.cc
+++ b/apps/shell/common/shell_content_client.cc
@@ -6,10 +6,10 @@
 
 #include "base/strings/string_piece.h"
 #include "base/strings/utf_string_conversions.h"
+#include "content/public/common/user_agent_util.h"
 #include "extensions/common/constants.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
-#include "webkit/common/user_agent/user_agent_util.h"
 
 namespace apps {
 
@@ -29,7 +29,7 @@ void ShellContentClient::AddAdditionalSchemes(
 std::string ShellContentClient::GetUserAgent() const {
   // TODO(derat): Figure out what this should be for app_shell and determine
   // whether we need to include a version number to placate browser sniffing.
-  return webkit_glue::BuildUserAgentFromProduct("Chrome");
+  return content::BuildUserAgentFromProduct("Chrome");
 }
 
 base::string16 ShellContentClient::GetLocalizedString(int message_id) const {