windows/linux: make compositor hidden when minimized

ShowWindowWithState() for windows and linux always calls
SetVisible(true), even when minimized. This makes the compositor
hidden when minimized.

BUG=none
TEST=none

Change-Id: Id8a48ab0096797904d894f6138cd9458afe60e61
Reviewed-on: https://chromium-review.googlesource.com/996249
Commit-Queue: Scott Violet <sky@chromium.org>
Reviewed-by: Michael Wasserman <msw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#548851}

ui/views/widget/desktop_aura/desktop_window_tree_host_platform.cc

@@ -104,7 +104,7 @@ void DesktopWindowTreeHostPlatform::ShowWindowWithState(
     ui::WindowShowState show_state) {
   if (compositor()) {
     platform_window()->Show();
-    compositor()->SetVisible(true);
+    compositor()->SetVisible(show_state != ui::SHOW_STATE_MINIMIZED);
   }
 
   switch (show_state) {

ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc

@@ -198,7 +198,7 @@ aura::WindowTreeHost* DesktopWindowTreeHostWin::AsWindowTreeHost() {
 void DesktopWindowTreeHostWin::ShowWindowWithState(
     ui::WindowShowState show_state) {
   if (compositor())
-    compositor()->SetVisible(true);
+    compositor()->SetVisible(show_state != ui::SHOW_STATE_MINIMIZED);
   message_handler_->ShowWindowWithState(show_state);
 }
 

ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc

@@ -515,7 +515,7 @@ aura::WindowTreeHost* DesktopWindowTreeHostX11::AsWindowTreeHost() {
 void DesktopWindowTreeHostX11::ShowWindowWithState(
     ui::WindowShowState show_state) {
   if (compositor())
-    SetVisible(true);
+    SetVisible(show_state != ui::SHOW_STATE_MINIMIZED);
   if (!IsVisible() || !window_mapped_in_server_)
     MapWindow(show_state);