Fix bug where many extensions don't install due to sandbox.

chrome/common/extensions/extension_l10n_util.h

Index: chrome/common/extensions/extension_l10n_util.h
diff --git a/chrome/browser/extensions/extension_l10n_util.h b/chrome/common/extensions/extension_l10n_util.h
similarity index 87%
rename from chrome/browser/extensions/extension_l10n_util.h
rename to chrome/common/extensions/extension_l10n_util.h
index 07be73e158e52a2058406d4bc08035d2b6c8ec9a..87ad43f2464151e1f6ea0fbe87d7e246c2fb90ee 100644
--- a/chrome/browser/extensions/extension_l10n_util.h
+++ b/chrome/common/extensions/extension_l10n_util.h
@@ -4,8 +4,8 @@
 //
 // This file declares extension specific l10n utils.
 
-#ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_L10N_UTIL_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_L10N_UTIL_H_
+#ifndef CHROME_COMMON_EXTENSIONS_EXTENSION_L10N_UTIL_H_
+#define CHROME_COMMON_EXTENSIONS_EXTENSION_L10N_UTIL_H_
 
 #include <set>
 #include <string>
@@ -18,6 +18,11 @@ class FilePath;
 
 namespace extension_l10n_util {
 
+// Set the locale for this process to a fixed value, rather than using the
+// normal file-based lookup mechanisms. This is used to set the locale inside
+// the sandboxed utility process, where file reading is not allowed.
+void SetProcessLocale(const std::string& locale);
+
 // Returns default locale in form "en-US" or "sr" or empty string if
 // "default_locale" section was not defined in the manifest.json file.
 std::string GetDefaultLocaleFromManifest(const DictionaryValue& manifest,
@@ -74,4 +79,4 @@ void GetL10nRelativePaths(const FilePath& relative_resource_path,
 
 }  // namespace extension_l10n_util
 
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_L10N_UTIL_H_
+#endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_L10N_UTIL_H_