Bug fix: Show mouse cursor during full screen share on ChromeOS.

content/browser/media/capture/cursor_renderer_aura.cc

Index: content/browser/media/capture/cursor_renderer_aura.cc
diff --git a/content/browser/media/capture/cursor_renderer_aura.cc b/content/browser/media/capture/cursor_renderer_aura.cc
index 68d743a149dfaa030be792f65a75aed4c4652016..3fd306c48eb96e576ccb9766c8bf2dd29a334487 100644
--- a/content/browser/media/capture/cursor_renderer_aura.cc
+++ b/content/browser/media/capture/cursor_renderer_aura.cc
@@ -76,15 +76,19 @@ bool CursorRendererAura::SnapshotCursorState(const gfx::Rect& region_in_frame) {
     return false;
   }
 
-  aura::client::ActivationClient* activation_client =
-      aura::client::GetActivationClient(window_->GetRootWindow());
-  DCHECK(activation_client);
-  aura::Window* active_window = activation_client->GetActiveWindow();
-  if (!active_window->Contains(window_)) {
-    // Return early if the target window is not active.
-    DVLOG(2) << "Skipping update on an inactive window";
-    Clear();
-    return false;
+  // No need to check whether the root window, namely the screen is active or
+  // not.

[Sergey Ulanov, 2015/12/16 01:43:36]

Please reword this to make it clear what's going on here. E.g.:
  // If this is not a root window then the cursor should be rendered
  // only when the window is active.

[qiangchen, 2015/12/16 17:30:05]

Done.

+  if (!window_->IsRootWindow()){

[Sergey Ulanov, 2015/12/16 01:43:36]

formatting: need a space before {

[qiangchen, 2015/12/16 17:30:05]

Done.

+    aura::client::ActivationClient* activation_client =
+        aura::client::GetActivationClient(window_->GetRootWindow());
+    DCHECK(activation_client);
+    aura::Window* active_window = activation_client->GetActiveWindow();
+    if (!active_window->Contains(window_)) {
+      // Return early if the target window is not active.
+      DVLOG(2) << "Skipping update on an inactive window";
+      Clear();
+      return false;
+    }
   }
 
   gfx::NativeCursor cursor = window_->GetHost()->last_cursor();