Bug 717231 - Downloads are not added to the Download Manager (stock ICS 4.0.3) [r=mbrubeck]

mobile/android/base/AndroidManifest.xml.in

@@ -18,6 +18,7 @@
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
     <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.DOWNLOAD_WITHOUT_NOTIFICATION"/>
     <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT"/>
 
     <uses-permission android:name="android.permission.WAKE_LOCK"/>

mobile/android/chrome/content/browser.js

@@ -547,6 +547,10 @@ var BrowserApp = {
     printSettings.headerStrLeft   = "";
     printSettings.headerStrRight  = "";
 
+    // Create a valid mimeInfo for the PDF
+    let ms = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService);
+    let mimeInfo = ms.getFromTypeAndExtension("application/pdf", "pdf");
+
     let webBrowserPrint = content.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIWebBrowserPrint);
 
     let cancelable = {
@@ -556,7 +560,7 @@ var BrowserApp = {
     }
     let download = dm.addDownload(Ci.nsIDownloadManager.DOWNLOAD_TYPE_DOWNLOAD,
                                   aBrowser.currentURI,
-                                  Services.io.newFileURI(file), "", null,
+                                  Services.io.newFileURI(file), "", mimeInfo,
                                   Date.now() * 1000, null, cancelable);
 
     webBrowserPrint.print(printSettings, download);

mobile/android/chrome/content/downloads.js

@@ -140,16 +140,20 @@ var Downloads = {
     } else if (aTopic == "dl-done") {
       msgKey = "alertDownloadsDone";
 
-      let message = {
-        gecko: {
-          type: "Downloads:Done",
-          displayName: download.displayName,
-          path: download.targetFile.path,
-          size: download.size,
-          mimeType: download.MIMEInfo ? download.MIMEInfo.type : ""
-        }
-      };
-      sendMessageToJava(message);
+      // In order to get the fileSize to be correct for "Save as PDF", we need
+      // let the local file be safely written before accessing it.
+      setTimeout(function() {
+        let message = {
+          gecko: {
+            type: "Downloads:Done",
+            displayName: download.displayName,
+            path: download.targetFile.path,
+            size: download.targetFile.fileSize,
+            mimeType: download.MIMEInfo ? download.MIMEInfo.type : ""
+          }
+        };
+        sendMessageToJava(message);
+      }, 0);
     }
 
     if (msgKey)