components: Add Exosphere component.

chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc

Index: chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
diff --git a/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc b/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
index 37851a85b9087e1d659feca22cd7e7bced540721..ed1436237210b67bcbecf0ad8c41ea6e2596d0e9 100644
--- a/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
+++ b/chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.cc
@@ -14,6 +14,7 @@
 #include "chrome/browser/ui/ash/ash_util.h"
 #include "chrome/browser/ui/views/ash/tab_scrubber.h"
 #include "chrome/common/chrome_switches.h"
+#include "components/exo/display.h"
 #include "ui/aura/env.h"
 #include "ui/gfx/screen.h"
 #include "ui/gfx/screen_type_delegate.h"
@@ -34,6 +35,13 @@
 #include "base/win/windows_version.h"
 #endif
 
+#if defined(OS_LINUX)
+#include "base/message_loop/message_loop.h"
+#include "chrome/common/chrome_switches.h"
+#include "components/exo/wayland/server.h"
+#include "content/public/browser/browser_thread.h"
+#endif
+
 #if !defined(OS_CHROMEOS)
 class ScreenTypeDelegateWin : public gfx::ScreenTypeDelegate {
  public:
@@ -65,6 +73,36 @@ base::LazyInstance<ShellDialogsDelegateWin> g_shell_dialogs_delegate;
 
 #endif
 
+#if defined(OS_LINUX)
+class ChromeBrowserMainExtraPartsAsh::WaylandWatcher
+    : public base::MessagePumpLibevent::Watcher {
+ public:
+  explicit WaylandWatcher(exo::wayland::Server* server) : server_(server) {
+#if defined(USE_OZONE) || (defined(USE_X11) && !defined(USE_GLIB))
+    base::MessageLoopForUI::current()->WatchFileDescriptor(
+        server_->GetFileDescriptor(),
+        true,  // persistent
+        base::MessagePumpLibevent::WATCH_READ, &controller_, this);
+#else
+    NOTIMPLEMENTED();
+#endif
+  }
+
+  // base::MessagePumpLibevent::Watcher:
+  void OnFileCanReadWithoutBlocking(int fd) override {
+    server_->Dispatch(base::TimeDelta());
+    server_->Flush();
+  }
+  void OnFileCanWriteWithoutBlocking(int fd) override { NOTREACHED(); }
+
+ private:
+  base::MessagePumpLibevent::FileDescriptorWatcher controller_;
+  exo::wayland::Server* const server_;
+
+  DISALLOW_COPY_AND_ASSIGN(WaylandWatcher);
+};
+#endif
+
 ChromeBrowserMainExtraPartsAsh::ChromeBrowserMainExtraPartsAsh() {
 }
 
@@ -79,6 +117,16 @@ void ChromeBrowserMainExtraPartsAsh::PreProfileInit() {
   ash::Shell::GetInstance()->CreateShelf();
   ash::Shell::GetInstance()->ShowShelf();
 #endif
+
+  exo_display_ = make_scoped_ptr(new exo::Display);
+#if defined(OS_LINUX)
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnableWaylandServer)) {
+    wayland_server_ = exo::wayland::Server::Create(exo_display_.get());
+    wayland_watcher_ =
+        make_scoped_ptr(new WaylandWatcher(wayland_server_.get()));
+  }
+#endif
   } else {
 #if !defined(OS_CHROMEOS)
     gfx::Screen::SetScreenTypeDelegate(new ScreenTypeDelegateWin);
@@ -111,5 +159,9 @@ void ChromeBrowserMainExtraPartsAsh::PostProfileInit() {
 }
 
 void ChromeBrowserMainExtraPartsAsh::PostMainMessageLoopRun() {
+#if defined(OS_LINUX)
+  wayland_server_.reset();
+#endif
+  exo_display_.reset();
   chrome::CloseAsh();
 }