Bug 779442 - Fix a few more incorrect uses of nsresult; r=ehsan

embedding/components/printingui/src/unixshared/nsPrintProgress.cpp

@@ -137,7 +137,7 @@ NS_IMETHODIMP nsPrintProgress::RegisterListener(nsIWebProgressListener * listene
       listener->OnStateChange(nullptr, nullptr, nsIWebProgressListener::STATE_STOP, NS_OK);
     else
     {
-      listener->OnStatusChange(nullptr, nullptr, 0, m_pendingStatus.get());
+      listener->OnStatusChange(nullptr, nullptr, NS_OK, m_pendingStatus.get());
       if (m_pendingStateFlags != -1)
         listener->OnStateChange(nullptr, nullptr, m_pendingStateFlags, m_pendingStateValue);
     }

image/src/imgStatusTracker.h

@@ -151,7 +151,7 @@ private:
   // can't create a cycle.
   mozilla::image::Image* mImage;
   PRUint32 mState;
-  nsresult mImageStatus;
+  PRUint32 mImageStatus;
   bool mHadLastPart;
 };
 

toolkit/components/statusfilter/nsBrowserStatusFilter.cpp

@@ -317,7 +317,7 @@ void
 nsBrowserStatusFilter::MaybeSendStatus()
 {
     if (mStatusIsDirty) {
-        mListener->OnStatusChange(nullptr, nullptr, 0, mStatusMsg.get());
+        mListener->OnStatusChange(nullptr, nullptr, NS_OK, mStatusMsg.get());
         mCurrentStatusMsg = mStatusMsg;
         mStatusIsDirty = false;
     }

toolkit/components/url-classifier/nsUrlClassifierDBService.cpp

@@ -3591,7 +3591,7 @@ nsresult nsUrlClassifierStore::ReadPrefixes(FallibleTArray<PRUint32>& array,
 
     const PRUint8 *blobdomain = mAllPrefixGetStatement->AsSharedBlob(0, &size);
     if (!blobdomain || (size != DOMAIN_LENGTH))
-      return false;
+      return NS_OK;
 
     domainval = *(reinterpret_cast<const PRUint32*>(blobdomain));