Convert app banners to use Mojo.

third_party/WebKit/public/web/WebLocalFrame.h

Index: third_party/WebKit/public/web/WebLocalFrame.h
diff --git a/third_party/WebKit/public/web/WebLocalFrame.h b/third_party/WebKit/public/web/WebLocalFrame.h
index 553d916965df0d038f37410c4fe84fb34e9a112a..965ec2cb132e9c9853bffcb3371e11b5532cd5f7 100644
--- a/third_party/WebKit/public/web/WebLocalFrame.h
+++ b/third_party/WebKit/public/web/WebLocalFrame.h
@@ -13,6 +13,10 @@
 
 namespace blink {
 
+namespace mojom {
+enum class AppBannerPromptReply;
+}
+
 class WebAutofillClient;
 class WebContentSettingsClient;
 class WebDevToolsAgent;
@@ -23,7 +27,6 @@ class WebFrameWidget;
 class WebRange;
 class WebScriptExecutionCallback;
 class WebSuspendableTask;
-enum class WebAppBannerPromptReply;
 enum class WebCachePolicy;
 enum class WebSandboxFlags;
 enum class WebTreeScopeType;
@@ -298,11 +301,11 @@ class WebLocalFrame : public WebFrame {
 
   // Request to show an application install banner for the given |platforms|.
   // The implementation can request the embedder to cancel the call by setting
-  // |cancel| to true.
+  // |reply| to mojom::AppBannerPromptReply::CANCEL.
   virtual void willShowInstallBannerPrompt(
       int requestId,
       const WebVector<WebString>& platforms,
-      WebAppBannerPromptReply*) = 0;
+      mojom::AppBannerPromptReply*) = 0;
 
   // Image reload -----------------------------------------------------------