Remove obsolete code to name Ash root window.

We used to set the root window name to aura_root_0 or aura_root_x in
order to allow Gtalk to share the ChromeOS desktop. This is no longer
necessary.

BUG=392002
TEST=Launch chromeos=1 build on Linux, verify window is untitled.

Review URL: https://codereview.chromium.org/1097363004

Cr-Commit-Position: refs/heads/master@{#326175}

3 files changed, 0 insertions, 64 deletions

diff --git a/ash/display/display_controller.cc b/ash/display/display_controller.cc
index 445e804..3dd1bef 100644
--- a/ash/display/display_controller.cc
+++ b/ash/display/display_controller.cc
@@ -340,7 +340,6 @@ void DisplayController::InitDisplays() {
       RootWindowController::CreateForSecondaryDisplay(ash_host);
     }
   }
-  UpdateHostWindowNames();
 
   FOR_EACH_OBSERVER(Observer, observers_, OnDisplaysInitialized());
 }
@@ -797,7 +796,6 @@ void DisplayController::PostDisplayConfigurationChange() {
     }
   }
   FOR_EACH_OBSERVER(Observer, observers_, OnDisplayConfigurationChanged());
-  UpdateHostWindowNames();
   UpdateMouseLocationAfterDisplayChange();
 }
 
@@ -846,21 +844,4 @@ void DisplayController::SetMirrorModeAfterAnimation(bool mirror) {
   GetDisplayManager()->SetMirrorMode(mirror);
 }
 
-void DisplayController::UpdateHostWindowNames() {
-#if defined(USE_X11)
-  // crbug.com/120229 - set the window title for the primary dislpay
-  // to "aura_root_0" so gtalk can find the primary root window to broadcast.
-  // TODO(jhorwich) Remove this once Chrome supports window-based broadcasting.
-  aura::Window* primary = Shell::GetPrimaryRootWindow();
-  aura::Window::Windows root_windows = Shell::GetAllRootWindows();
-  for (size_t i = 0; i < root_windows.size(); ++i) {
-    std::string name =
-        root_windows[i] == primary ? "aura_root_0" : "aura_root_x";
-    gfx::AcceleratedWidget xwindow =
-        root_windows[i]->GetHost()->GetAcceleratedWidget();
-    XStoreName(gfx::GetXDisplay(), xwindow, name.c_str());
-  }
-#endif
-}
-
 }  // namespace ash
diff --git a/ash/display/display_controller.h b/ash/display/display_controller.h
index e795d77..3dc8189 100644
--- a/ash/display/display_controller.h
+++ b/ash/display/display_controller.h
@@ -174,8 +174,6 @@ class ASH_EXPORT DisplayController : public gfx::DisplayObserver,
 
   void SetMirrorModeAfterAnimation(bool mirror);
 
-  void UpdateHostWindowNames();
-
   class DisplayChangeLimiter {
    public:
     DisplayChangeLimiter();
diff --git a/ash/display/display_controller_unittest.cc b/ash/display/display_controller_unittest.cc
index 6945fac2..e052f1b 100644
--- a/ash/display/display_controller_unittest.cc
+++ b/ash/display/display_controller_unittest.cc
@@ -361,23 +361,6 @@ float GetStoredUIScale(int64 id) {
       GetEffectiveUIScale();
 }
 
-#if defined(USE_X11)
-void GetPrimaryAndSeconary(aura::Window** primary,
-                           aura::Window** secondary) {
-  *primary = Shell::GetPrimaryRootWindow();
-  aura::Window::Windows root_windows = Shell::GetAllRootWindows();
-  *secondary = root_windows[0] == *primary ? root_windows[1] : root_windows[0];
-}
-
-std::string GetXWindowName(aura::WindowTreeHost* host) {
-  char* name = NULL;
-  XFetchName(gfx::GetXDisplay(), host->GetAcceleratedWidget(), &name);
-  std::string ret(name);
-  XFree(name);
-  return ret;
-}
-#endif
-
 class TestMouseWatcherListener : public views::MouseWatcherListener {
  public:
   TestMouseWatcherListener() {}
@@ -1307,32 +1290,6 @@ TEST_F(DisplayControllerTest, ReplaceSwappedPrimary) {
   EXPECT_EQ(20, Shell::GetScreen()->GetPrimaryDisplay().id());
 }
 
-#if defined(USE_X11)
-TEST_F(DisplayControllerTest, XWidowNameForRootWindow) {
-  EXPECT_EQ("aura_root_0", GetXWindowName(
-      Shell::GetPrimaryRootWindow()->GetHost()));
-
-  // Multiple display.
-  UpdateDisplay("200x200,300x300");
-  aura::Window* primary, *secondary;
-  GetPrimaryAndSeconary(&primary, &secondary);
-  EXPECT_EQ("aura_root_0", GetXWindowName(primary->GetHost()));
-  EXPECT_EQ("aura_root_x", GetXWindowName(secondary->GetHost()));
-
-  // Swap primary.
-  primary = secondary = NULL;
-  Shell::GetInstance()->display_controller()->SwapPrimaryDisplay();
-  GetPrimaryAndSeconary(&primary, &secondary);
-  EXPECT_EQ("aura_root_0", GetXWindowName(primary->GetHost()));
-  EXPECT_EQ("aura_root_x", GetXWindowName(secondary->GetHost()));
-
-  // Switching back to single display.
-  UpdateDisplay("300x400");
-  EXPECT_EQ("aura_root_0", GetXWindowName(
-      Shell::GetPrimaryRootWindow()->GetHost()));
-}
-#endif
-
 TEST_F(DisplayControllerTest, UpdateMouseLocationAfterDisplayChange) {
   if (!SupportsMultipleDisplays())
     return;