Forward password-store switch to OSCrypt component

components/os_crypt/key_storage_linux.h

Index: components/os_crypt/key_storage_linux.h
diff --git a/components/os_crypt/key_storage_linux.h b/components/os_crypt/key_storage_linux.h
index 0f8449178b8f6fbdac2bad8285c863d339d31317..59edc92b86dbddfa572d46d9b67f36b98ed30324 100644
--- a/components/os_crypt/key_storage_linux.h
+++ b/components/os_crypt/key_storage_linux.h
@@ -17,8 +17,10 @@ class KeyStorageLinux {
   KeyStorageLinux() = default;
   virtual ~KeyStorageLinux() = default;
 
-  // Tries to load all known key storages. Returns the first that succeeds or
-  // null if none succeed.
+  // Force OSCrypt to use a specific linux password store.
+  static void SetStore(const std::string& store_type);
+
+  // Tries to load the appropriate key storage. Returns null if none succeed.
   static std::unique_ptr<KeyStorageLinux> CreateService();
 
   // Gets the encryption key from the OS password-managing library. If a key is
@@ -30,6 +32,8 @@ class KeyStorageLinux {
   virtual bool Init() = 0;
 
  private:
+  static const char* s_store_;
+
   DISALLOW_COPY_AND_ASSIGN(KeyStorageLinux);
 };