Convert app banners to use Mojo.

third_party/WebKit/Source/modules/app_banner/AppBannerController.h

Index: third_party/WebKit/Source/modules/app_banner/AppBannerController.h
diff --git a/third_party/WebKit/Source/modules/app_banner/AppBannerController.h b/third_party/WebKit/Source/modules/app_banner/AppBannerController.h
index cef446cd5dd592df7557a85279f1b02e07cbed92..91361bf5810dd2e9c06294f0f526ea359cc3e77c 100644
--- a/third_party/WebKit/Source/modules/app_banner/AppBannerController.h
+++ b/third_party/WebKit/Source/modules/app_banner/AppBannerController.h
@@ -6,14 +6,16 @@
 #define AppBannerController_h
 
 #include "modules/ModulesExport.h"
+#include "mojo/public/cpp/system/message_pipe.h"
 #include "wtf/Allocator.h"
-#include "wtf/Noncopyable.h"
 
 namespace blink {
 
-enum class WebAppBannerPromptReply;
+namespace mojom {
+enum class AppBannerPromptReply;
+}
+
 class LocalFrame;
-class WebAppBannerClient;
 class WebString;
 template <typename T>
 class WebVector;
@@ -24,11 +26,12 @@ class MODULES_EXPORT AppBannerController final {
   STATIC_ONLY(AppBannerController);
 
  public:
-  static void willShowInstallBannerPrompt(int requestId,
-                                          WebAppBannerClient*,
-                                          LocalFrame*,
-                                          const WebVector<WebString>& platforms,
-                                          WebAppBannerPromptReply*);
+  static void willShowInstallBannerPrompt(
+      LocalFrame*,
+      mojo::ScopedMessagePipeHandle serviceHandle,
+      mojo::ScopedMessagePipeHandle eventHandle,
+      const WebVector<WebString>& platforms,
+      mojom::AppBannerPromptReply*);
 };
 
 }  // namespace blink