[原创]Cef3 2623.1397 开启ppapi flash插件

 1 void ClientAppBrowser::OnBeforeCommandLineProcessing(
 2     const CefString& process_type,
 3     CefRefPtr<CefCommandLine> command_line) {
 4   // Pass additional command-line flags to the browser process.
 5   if (process_type.empty()) {
 6     // Pass additional command-line flags when off-screen rendering is enabled.
 7     if (command_line->HasSwitch(switches::kOffScreenRenderingEnabled)) {
 8       // If the PDF extension is enabled then cc Surfaces must be disabled for
 9       // PDFs to render correctly.
10       // See https://bitbucket.org/chromiumembedded/cef/issues/1689 for details.
11       if (!command_line->HasSwitch("disable-extensions") &&
12           !command_line->HasSwitch("disable-pdf-extension")) {
13         command_line->AppendSwitch("disable-surfaces");
14       }
15 
16       // Use software rendering and compositing (disable GPU) for increased FPS
17       // and decreased CPU usage. This will also disable WebGL so remove these
18       // switches if you need that capability.
19       // See https://bitbucket.org/chromiumembedded/cef/issues/1257 for details.
20       if (!command_line->HasSwitch(switches::kEnableGPU)) {
21         command_line->AppendSwitch("disable-gpu");
22         command_line->AppendSwitch("disable-gpu-compositing");
23       }
24 
25       // Synchronize the frame rate between all processes. This results in
26       // decreased CPU usage by avoiding the generation of extra frames that
27       // would otherwise be discarded. The frame rate can be set at browser
28       // creation time via CefBrowserSettings.windowless_frame_rate or changed
29       // dynamically using CefBrowserHost::SetWindowlessFrameRate. In cefclient
30       // it can be set via the command-line using `--off-screen-frame-rate=XX`.
31       // See https://bitbucket.org/chromiumembedded/cef/issues/1368 for details.
32       command_line->AppendSwitch("enable-begin-frame-scheduling");
33     }
34 
35     // 此参数解决多窗口问题
36     command_line->AppendSwitch("process-per-site");
37     command_line->AppendSwitch("enable-npapi");
38     command_line->AppendSwitchWithValue("register-pepper-plugins", "PepperFlash/pepflashplayer.dll;application/x-shockwave-flash");
39 
40     DelegateSet::iterator it = delegates_.begin();
41     for (; it != delegates_.end(); ++it)
42       (*it)->OnBeforeCommandLineProcessing(this, command_line);
43   }
44 }