Rename extension_manifest_keys namespace to extensions::manifest_keys.

chrome/common/extensions/api/omnibox/omnibox_handler.cc

Index: chrome/common/extensions/api/omnibox/omnibox_handler.cc
diff --git a/chrome/common/extensions/api/omnibox/omnibox_handler.cc b/chrome/common/extensions/api/omnibox/omnibox_handler.cc
index 7b95ac2423dc4187cdddd790ae06413dc14ad943..284db713bc8ba32bc2b5631820c8ef762bc4dfb8 100644
--- a/chrome/common/extensions/api/omnibox/omnibox_handler.cc
+++ b/chrome/common/extensions/api/omnibox/omnibox_handler.cc
@@ -24,7 +24,7 @@ const char kKeyword[] = "keyword";
 // static
 const std::string& OmniboxInfo::GetKeyword(const Extension* extension) {
   OmniboxInfo* info = static_cast<OmniboxInfo*>(
-      extension->GetManifestData(extension_manifest_keys::kOmnibox));
+      extension->GetManifestData(manifest_keys::kOmnibox));
   return info ? info->keyword : EmptyString();
 }
 
@@ -37,19 +37,19 @@ OmniboxHandler::~OmniboxHandler() {
 bool OmniboxHandler::Parse(Extension* extension, string16* error) {
   scoped_ptr<OmniboxInfo> info(new OmniboxInfo);
   const base::DictionaryValue* dict = NULL;
-  if (!extension->manifest()->GetDictionary(extension_manifest_keys::kOmnibox,
+  if (!extension->manifest()->GetDictionary(manifest_keys::kOmnibox,
                                             &dict) ||
       !dict->GetString(kKeyword, &info->keyword) ||
       info->keyword.empty()) {
     *error = ASCIIToUTF16(extension_manifest_errors::kInvalidOmniboxKeyword);
     return false;
   }
-  extension->SetManifestData(extension_manifest_keys::kOmnibox, info.release());
+  extension->SetManifestData(manifest_keys::kOmnibox, info.release());
   return true;
 }
 
 const std::vector<std::string> OmniboxHandler::Keys() const {
-  return SingleKey(extension_manifest_keys::kOmnibox);
+  return SingleKey(manifest_keys::kOmnibox);
 }
 
 }  // namespace extensions