Do not open screencast in DevTools by default

If screencastEnabled preference is not found, ScreencastApp.ts defaults
it to true. This happens at the first start of a browser application.

Task-number: QTBUG-96942
Change-Id: I15788737640cfe07c0016b31fc471906452aad1b
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
(cherry picked from commit 1c8934c8ed1fa0eca96f980cd597c887678f4b14)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/core/devtools_frontend_qt.cpp b/src/core/devtools_frontend_qt.cpp
index 81701b631..9a7736964 100644
--- a/src/core/devtools_frontend_qt.cpp
+++ b/src/core/devtools_frontend_qt.cpp
@@ -87,6 +87,8 @@ using namespace QtWebEngineCore;
 
 namespace {
 
+constexpr char kScreencastEnabled[] = "screencastEnabled";
+
 std::unique_ptr<base::DictionaryValue> BuildObjectForResponse(const net::HttpResponseHeaders *rh,
                                                               bool success,
                                                               int net_error)
@@ -468,6 +470,10 @@ void DevToolsFrontendQt::HandleMessageFromDevToolsFrontend(const std::string &me
         m_loaders.insert(std::move(resource_loader));
         return;
     } else if (method == "getPreferences") {
+        // Screencast is enabled by default if it's not present in the preference store.
+        if (!m_prefStore->GetValue(kScreencastEnabled, NULL))
+            SetPreference(kScreencastEnabled, "false");
+
         m_preferences = std::move(*m_prefStore->GetValues());
         SendMessageAck(request_id, &m_preferences);
         return;