Reduce allocations using QStringLiteral

src/encryption/DeviceVerificationFlow.cpp

@@ -429,23 +429,23 @@ DeviceVerificationFlow::state()
 {
     switch (state_) {
     case PromptStartVerification:
-        return "PromptStartVerification";
+        return QStringLiteral("PromptStartVerification");
     case CompareEmoji:
-        return "CompareEmoji";
+        return QStringLiteral("CompareEmoji");
     case CompareNumber:
-        return "CompareNumber";
+        return QStringLiteral("CompareNumber");
     case WaitingForKeys:
-        return "WaitingForKeys";
+        return QStringLiteral("WaitingForKeys");
     case WaitingForOtherToAccept:
-        return "WaitingForOtherToAccept";
+        return QStringLiteral("WaitingForOtherToAccept");
     case WaitingForMac:
-        return "WaitingForMac";
+        return QStringLiteral("WaitingForMac");
     case Success:
-        return "Success";
+        return QStringLiteral("Success");
     case Failed:
-        return "Failed";
+        return QStringLiteral("Failed");
     default:
-        return "";
+        return QString();
     }
 }
 

src/encryption/SelfVerificationStatus.cpp

@@ -211,8 +211,8 @@ SelfVerificationStatus::verifyMasterKey()
         (void)sig;
 
         auto d = QString::fromStdString(dev);
-        if (d.startsWith("ed25519:")) {
-            d.remove("ed25519:");
+        if (d.startsWith(QLatin1String("ed25519:"))) {
+            d.remove(QStringLiteral("ed25519:"));
 
             if (keys->device_keys.count(d.toStdString()))
                 devices.push_back(std::move(d));