arc: Partially migrate mojo types

components/arc/clipboard/arc_clipboard_bridge.h

Index: components/arc/clipboard/arc_clipboard_bridge.h
diff --git a/components/arc/clipboard/arc_clipboard_bridge.h b/components/arc/clipboard/arc_clipboard_bridge.h
index 3b105e270e831735daaf4a62e9afcd43687a3ca3..5b07d73d80f8d3040a5c4e23cf4124fe4f43e429 100644
--- a/components/arc/clipboard/arc_clipboard_bridge.h
+++ b/components/arc/clipboard/arc_clipboard_bridge.h
@@ -5,12 +5,13 @@
 #ifndef COMPONENTS_ARC_CLIPBOARD_ARC_CLIPBOARD_BRIDGE_H_
 #define COMPONENTS_ARC_CLIPBOARD_ARC_CLIPBOARD_BRIDGE_H_
 
+#include <string>
+
 #include "base/macros.h"
 #include "components/arc/arc_service.h"
 #include "components/arc/common/clipboard.mojom.h"
 #include "components/arc/instance_holder.h"
 #include "mojo/public/cpp/bindings/binding.h"
-#include "mojo/public/cpp/bindings/string.h"
 
 namespace arc {
 
@@ -26,7 +27,7 @@ class ArcClipboardBridge
   void OnInstanceReady() override;
 
   // mojom::ClipboardHost overrides.
-  void SetTextContent(const mojo::String& text) override;
+  void SetTextContent(const std::string& text) override;
   void GetTextContent() override;
 
  private: