cef/patch/patches/message_loop.patch
Marshall Greenblatt 66648c2343 Update to Chromium version 97.0.4692.0 (#938553)
- Remove CefRequestContextHandler::OnBeforePluginLoad and
  CefRequestContext::PurgePluginListCache (fixes issue #3047). These methods
  stopped being relevant after the removal of Flash support in January 2021.
  The last remaining PPAPI plugin (PDF viewer) will switch to a non-plugin
  implementation in the near future (see https://crbug.com/702993#c58) and
  functionality related to plugin filtering has already been removed in
  https://crrev.com/343ae351c9.
2021-11-15 14:25:16 -05:00

76 lines
2.9 KiB
Diff

diff --git base/message_loop/message_pump_win.cc base/message_loop/message_pump_win.cc
index 2c8d83d2424d9..ae9f7229a51cf 100644
--- base/message_loop/message_pump_win.cc
+++ base/message_loop/message_pump_win.cc
@@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
+#include "base/task/current_thread.h"
#include "base/message_loop/message_pump_win.h"
#include <algorithm>
@@ -497,7 +498,17 @@ bool MessagePumpForUI::ProcessNextWindowsMessage() {
ctx.event()->set_chrome_message_pump();
msg_pump_data->set_sent_messages_in_queue(more_work_is_plausible);
});
- has_msg = ::PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE) != FALSE;
+
+ // We should not process all window messages if we are in the context of an
+ // OS modal loop, i.e. in the context of a windows API call like MessageBox.
+ // This is to ensure that these messages are peeked out by the OS modal loop.
+ if (CurrentThread::Get()->os_modal_loop()) {
+ // We only peek out WM_PAINT and WM_TIMER here for reasons mentioned above.
+ has_msg = PeekMessage(&msg, NULL, WM_PAINT, WM_PAINT, PM_REMOVE) ||
+ PeekMessage(&msg, NULL, WM_TIMER, WM_TIMER, PM_REMOVE);
+ } else {
+ has_msg = PeekMessage(&msg, NULL, 0, 0, PM_REMOVE) != FALSE;
+ }
}
}
if (has_msg)
diff --git base/task/current_thread.cc base/task/current_thread.cc
index 9641285fde742..51cc852fcc165 100644
--- base/task/current_thread.cc
+++ base/task/current_thread.cc
@@ -48,6 +48,8 @@ void CurrentThread::AddDestructionObserver(
void CurrentThread::RemoveDestructionObserver(
DestructionObserver* destruction_observer) {
+ if (!current_)
+ return;
DCHECK(current_->IsBoundToCurrentThread());
current_->RemoveDestructionObserver(destruction_observer);
}
diff --git base/task/current_thread.h base/task/current_thread.h
index b69284cd85576..111185c0ab9a8 100644
--- base/task/current_thread.h
+++ base/task/current_thread.h
@@ -127,6 +127,12 @@ class BASE_EXPORT CurrentThread {
// posted tasks.
void SetAddQueueTimeToTasks(bool enable);
+#if defined(OS_WIN)
+ void set_os_modal_loop(bool os_modal_loop) { os_modal_loop_ = os_modal_loop; }
+
+ bool os_modal_loop() const { return os_modal_loop_; }
+#endif // OS_WIN
+
// Enables nested task processing in scope of an upcoming native message loop.
// Some unwanted message loops may occur when using common controls or printer
// functions. Hence, nested task processing is disabled by default to avoid
@@ -192,6 +198,13 @@ class BASE_EXPORT CurrentThread {
friend class web::WebTaskEnvironment;
sequence_manager::internal::SequenceManagerImpl* current_;
+
+#if defined(OS_WIN)
+ private:
+ // Should be set to true before calling Windows APIs like TrackPopupMenu, etc.
+ // which enter a modal message loop.
+ bool os_modal_loop_ = false;
+#endif
};
#if !defined(OS_NACL)