Bug 949666 - Save last used upload dir with e10s. r=billm

dom/html/HTMLInputElement.cpp

@@ -1032,11 +1032,12 @@ UploadLastDir::FetchDirectoryAndDisplayPicker(nsIDocument* aDoc,
   nsCOMPtr<nsIContentPrefCallback2> prefCallback = 
     new UploadLastDir::ContentPrefCallback(aFilePicker, aFpCallback);
 
+#ifdef MOZ_B2G
   if (XRE_GetProcessType() == GeckoProcessType_Content) {
-    // FIXME (bug 949666): Run this code in the parent process.
     prefCallback->HandleCompletion(nsIContentPrefCallback2::COMPLETE_ERROR);
     return NS_OK;
   }
+#endif
 
   // Attempt to get the CPS, if it's not present we'll fallback to use the Desktop folder
   nsCOMPtr<nsIContentPrefService2> contentPrefService =
@@ -1062,10 +1063,11 @@ UploadLastDir::StoreLastUsedDirectory(nsIDocument* aDoc, nsIFile* aDir)
     return NS_OK;
   }
 
+#ifdef MOZ_B2G
   if (XRE_GetProcessType() == GeckoProcessType_Content) {
-    // FIXME (bug 949666): Run this code in the parent process.
     return NS_OK;
   }
+#endif
 
   nsCOMPtr<nsIURI> docURI = aDoc->GetDocumentURI();
   NS_PRECONDITION(docURI, "docURI is null");

dom/ipc/FilePickerParent.cpp

@@ -202,7 +202,8 @@ FilePickerParent::RecvOpen(const int16_t& aSelectedType,
                            const nsString& aDefaultFile,
                            const nsString& aDefaultExtension,
                            const InfallibleTArray<nsString>& aFilters,
-                           const InfallibleTArray<nsString>& aFilterNames)
+                           const InfallibleTArray<nsString>& aFilterNames,
+                           const nsString& aDisplayDirectory)
 {
   if (!CreateFilePicker()) {
     unused << Send__delete__(this, void_t(), nsIFilePicker::returnCancel);
@@ -219,6 +220,14 @@ FilePickerParent::RecvOpen(const int16_t& aSelectedType,
   mFilePicker->SetDefaultExtension(aDefaultExtension);
   mFilePicker->SetFilterIndex(aSelectedType);
 
+  if (!aDisplayDirectory.IsEmpty()) {
+    nsCOMPtr<nsIFile> localFile = do_CreateInstance(NS_LOCAL_FILE_CONTRACTID);
+    if (localFile) {
+      localFile->InitWithPath(aDisplayDirectory);
+      mFilePicker->SetDisplayDirectory(localFile);
+    }
+  }
+
   mCallback = new FilePickerShownCallback(this);
 
   mFilePicker->Open(mCallback);

dom/ipc/FilePickerParent.h

@@ -36,7 +36,8 @@ class FilePickerParent : public PFilePickerParent
                         const nsString& aDefaultFile,
                         const nsString& aDefaultExtension,
                         const InfallibleTArray<nsString>& aFilters,
-                        const InfallibleTArray<nsString>& aFilterNames) MOZ_OVERRIDE;
+                        const InfallibleTArray<nsString>& aFilterNames,
+                        const nsString& aDisplayDirectory) MOZ_OVERRIDE;
 
   virtual void ActorDestroy(ActorDestroyReason aWhy) MOZ_OVERRIDE;
 

dom/ipc/PFilePicker.ipdl

@@ -29,7 +29,8 @@ protocol PFilePicker
 
 parent:
     Open(int16_t selectedType, bool addToRecentDocs, nsString defaultFile,
-         nsString defaultExtension, nsString[] filters, nsString[] filterNames);
+         nsString defaultExtension, nsString[] filters, nsString[] filterNames,
+         nsString displayDirectory);
 
 child:
     __delete__(MaybeInputFiles files, int16_t result);

widget/nsFilePickerProxy.cpp

@@ -136,8 +136,13 @@ nsFilePickerProxy::Open(nsIFilePickerShownCallback* aCallback)
 {
   mCallback = aCallback;
 
-  SendOpen(mSelectedType, mAddToRecentDocs, mDefault,
-           mDefaultExtension, mFilters, mFilterNames);
+  nsString displayDirectory;
+  if (mDisplayDirectory) {
+    mDisplayDirectory->GetPath(displayDirectory);
+  }
+
+  SendOpen(mSelectedType, mAddToRecentDocs, mDefault, mDefaultExtension,
+           mFilters, mFilterNames, displayDirectory);
 
   return NS_OK;
 }