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Add initial chrome runtime support (see issue #2969)

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Running `cefsimple --enable-chrome-runtime` will create and run a
Chrome browser window using the CEF app methods, and call
CefApp::OnContextInitialized as expected. CEF task methods also
work as expected in the main process. No browser-related methods or
callbacks are currently supported for the Chrome window, and the
application will exit when the last Chrome window closes.

The Chrome runtime requires resources.pak, chrome_100_percent.pak
and chrome_200_percent.pak files which were not previously built
with CEF. It shares the existing locales pak files which have been
updated to include additional Chrome-specific strings.

On Linux, the Chrome runtime requires GTK so use_gtk=true must be
specified via GN_DEFINES when building.

This change also refactors the CEF runtime, which can be tested in
the various supported modes by running:
$ cefclient
$ cefclient --multi-threaded-message-loop
$ cefclient --external-message-pump
This commit is contained in:
Marshall Greenblatt
2020-06-24 22:34:12 -04:00
parent 049caf9131
commit 1174994211
37 changed files with 994 additions and 158 deletions
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31
libcef/browser/context.cc
View File

@@ -23,7 +23,6 @@
#include "base/strings/utf_string_conversions.h"
#include "chrome/chrome_elf/chrome_elf_main.h"
#include "chrome/install_static/initialize_from_primary_module.h"
#include "components/crash/core/app/crashpad.h"
#endif
namespace {
@@ -267,8 +266,7 @@ void CefRunMessageLoop() {
return;
}
base::RunLoop run_loop;
run_loop.Run();
g_context->RunMessageLoop();
}
void CefQuitMessageLoop() {
@@ -284,8 +282,7 @@ void CefQuitMessageLoop() {
return;
}
// Quit the CefBrowserMessageLoop.
base::RunLoop::QuitCurrentWhenIdleDeprecated();
g_context->QuitMessageLoop();
}
void CefSetOSModalLoop(bool osModalLoop) {
@@ -321,6 +318,7 @@ bool CefContext::Initialize(const CefMainArgs& args,
void* windows_sandbox_info) {
init_thread_id_ = base::PlatformThread::CurrentId();
settings_ = settings;
application_ = application;
#if !(defined(OS_WIN) || defined(OS_LINUX))
if (settings.multi_threaded_message_loop) {
@@ -361,6 +359,21 @@ bool CefContext::Initialize(const CefMainArgs& args,
base::Unretained(this)));
}
void CefContext::RunMessageLoop() {
// Must always be called on the same thread as Initialize.
DCHECK(OnInitThread());
// Blocks until QuitMessageLoop() is called.
main_runner_->RunMessageLoop();
}
void CefContext::QuitMessageLoop() {
// Must always be called on the same thread as Initialize.
DCHECK(OnInitThread());
main_runner_->QuitMessageLoop();
}
void CefContext::Shutdown() {
// Must always be called on the same thread as Initialize.
DCHECK(OnInitThread());
@@ -457,11 +470,10 @@ void CefContext::OnContextInitialized() {
CEF_REQUIRE_UIT();
// Notify the handler.
CefRefPtr<CefApp> app = CefContentClient::Get()->application();
if (app.get()) {
if (application_) {
CefRefPtr<CefBrowserProcessHandler> handler =
app->GetBrowserProcessHandler();
if (handler.get())
application_->GetBrowserProcessHandler();
if (handler)
handler->OnContextInitialized();
}
}
@@ -480,4 +492,5 @@ void CefContext::ShutdownOnUIThread() {
void CefContext::FinalizeShutdown() {
browser_info_manager_.reset(nullptr);
application_ = nullptr;
}