Allow platform apps to respond to Web Intents

chrome/renderer/resources/extensions/experimental.app_custom_bindings.js

Index: chrome/renderer/resources/extensions/experimental.app_custom_bindings.js
diff --git a/chrome/renderer/resources/extensions/experimental.app_custom_bindings.js b/chrome/renderer/resources/extensions/experimental.app_custom_bindings.js
index a586df96f8e9e8eec8cb6c98678c7a71a9962894..91a144f15fdc19e39bd50e05a09fb1d5fdf7a8e0 100644
--- a/chrome/renderer/resources/extensions/experimental.app_custom_bindings.js
+++ b/chrome/renderer/resources/extensions/experimental.app_custom_bindings.js
@@ -9,12 +9,26 @@ var fileSystemHelpers = requireNative('file_system_natives');
 var GetIsolatedFileSystem = fileSystemHelpers.GetIsolatedFileSystem;
 var appNatives = requireNative('experimental_app');
 var DeserializeString = appNatives.DeserializeString;
+var SerializeToString = appNatives.SerializeToString;
 var CreateBlob = appNatives.CreateBlob;
 
 chromeHidden.Event.registerArgumentMassager('experimental.app.onLaunched',
     function(args, dispatch) {
-  var launchData = args[0];
-  var intentData = args[1];
+  var id = args[0];

[Mihai Parparita -not on Chrome, 2012/08/11 00:25:45]

Nit: call this intentId.

[thorogood, 2012/08/13 05:00:12]

Done.

+  var launchData = args[1];
+  var intentData = args[2];
+
+  if (launchData) {
+    var fn = function(success, data) {
+      chrome.experimental.app.postIntentResponse({
+        'intentId': id,
+        'success': success,
+        'data': SerializeToString(data)
+      });
+    };
+    launchData.intent.postResult = fn.bind(undefined, true);
+    launchData.intent.postFailure = fn.bind(undefined, false);
+  }
 
   if (launchData && intentData) {
     switch(intentData.format) {
@@ -23,8 +37,6 @@ chromeHidden.Event.registerArgumentMassager('experimental.app.onLaunched',
         try {
           fs.root.getFile(intentData.baseName, {}, function(fileEntry) {
             launchData.intent.data = fileEntry;
-            launchData.intent.postResult = function() {};
-            launchData.intent.postFailure = function() {};
             dispatch([launchData]);
           }, function(fileError) {
             console.error('Error getting fileEntry, code: ' + fileError.code);
@@ -38,16 +50,12 @@ chromeHidden.Event.registerArgumentMassager('experimental.app.onLaunched',
       case('serialized'):
         var deserializedData = DeserializeString(intentData.data);
         launchData.intent.data = deserializedData;
-        launchData.intent.postResult = function() {};
-        launchData.intent.postFailure = function() {};
         dispatch([launchData]);
         break;
       case('blob'):
         var blobData = CreateBlob(intentData.blobFilePath,
                                   intentData.blobLength);
         launchData.intent.data = blobData;
-        launchData.intent.postResult = function() {};
-        launchData.intent.postFailure = function() {};
         dispatch([launchData]);
         break;
       default: