Port DictionaryValue to use string16 instead of wstring.

chrome/browser/extensions/extensions_service.cc

Index: chrome/browser/extensions/extensions_service.cc
===================================================================
--- chrome/browser/extensions/extensions_service.cc	(revision 10828)
+++ chrome/browser/extensions/extensions_service.cc	(working copy)
@@ -402,14 +402,15 @@
   // again later, checking it here allows us to skip some potentially expensive
   // work.
   std::string id;
-  if (!manifest->GetString(Extension::kIdKey, &id)) {
+  if (!manifest->GetString(WideToUTF16Hack(Extension::kIdKey), &id)) {
     ReportExtensionInstallError("missing id key");
     return NULL;
   }
   FilePath dest_dir = install_directory_.AppendASCII(id.c_str());
   if (file_util::PathExists(dest_dir)) {
     std::string version;
-    if (!manifest->GetString(Extension::kVersionKey, &version)) {
+    if (!manifest->GetString(WideToUTF16Hack(Extension::kVersionKey),
+                             &version)) {
       ReportExtensionInstallError("missing version key");
       return NULL;
     }
@@ -421,7 +422,8 @@
   }
 
   std::string zip_hash;
-  if (!manifest->GetString(Extension::kZipHashKey, &zip_hash)) {
+  if (!manifest->GetString(WideToUTF16Hack(Extension::kZipHashKey),
+                           &zip_hash)) {
     ReportExtensionInstallError("missing zip_hash key");
     return NULL;
   }