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..381fa37efa0ebfc34af31f9f5f5b466c7cbbfd76 100644
--- a/third_party/WebKit/public/web/WebLocalFrame.h
+++ b/third_party/WebKit/public/web/WebLocalFrame.h
@@ -9,10 +9,15 @@
 #include "WebFrame.h"
 #include "WebFrameLoadType.h"
 #include "WebHistoryItem.h"
+#include "mojo/public/cpp/system/message_pipe.h"
 #include "public/platform/WebCachePolicy.h"
 
 namespace blink {
 
+namespace mojom {
+enum class AppBannerPromptReply;
+}
+
 class WebAutofillClient;
 class WebContentSettingsClient;
 class WebDevToolsAgent;
@@ -23,7 +28,6 @@ class WebFrameWidget;
 class WebRange;
 class WebScriptExecutionCallback;
 class WebSuspendableTask;
-enum class WebAppBannerPromptReply;
 enum class WebCachePolicy;
 enum class WebSandboxFlags;
 enum class WebTreeScopeType;
@@ -296,13 +300,15 @@ class WebLocalFrame : public WebFrame {
 
   // App banner -------------------------------------------------------------
 
-  // 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.
+  // Request to show an app install banner for the given |platforms|. The
+  // ScopedMessagePipeHandles represent the raw connections to and from an
+  // AppBannerService. Setting |AppBannerPromptReply| to
+  // mojom::AppBannerPromptReply::CANCEL will cancel the banner.
   virtual void willShowInstallBannerPrompt(
-      int requestId,
+      mojo::ScopedMessagePipeHandle serviceHandle,
+      mojo::ScopedMessagePipeHandle eventHandle,
       const WebVector<WebString>& platforms,
-      WebAppBannerPromptReply*) = 0;
+      mojom::AppBannerPromptReply*) = 0;
 
   // Image reload -----------------------------------------------------------