Update bool WindowManager::OnWmSetBounds() to match with its desirable behavior.

ui/aura/mus/window_tree_client.cc

Index: ui/aura/mus/window_tree_client.cc
diff --git a/ui/aura/mus/window_tree_client.cc b/ui/aura/mus/window_tree_client.cc
index 03c333e8f365cbe8eb568f28ca76010030177651..d56616f4c5a3a01f3501c1f387099194cf0b9295 100644
--- a/ui/aura/mus/window_tree_client.cc
+++ b/ui/aura/mus/window_tree_client.cc
@@ -1302,22 +1302,17 @@ void WindowTreeClient::WmSetBounds(uint32_t change_id,
                                    Id window_id,
                                    const gfx::Rect& transit_bounds) {
   WindowMus* window = GetWindowByServerId(window_id);
-  bool result = false;
   if (window) {
     DCHECK(window_manager_delegate_);
-    gfx::Rect bounds = transit_bounds;
     // TODO: this needs to trigger scheduling a bounds change on |window|.
-    result =
-        window_manager_delegate_->OnWmSetBounds(window->GetWindow(), &bounds);
-    if (result) {
-      // If the resulting bounds differ return false. Returning false ensures
-      // the client applies the bounds we set below.
-      result = bounds == transit_bounds;
-      window->SetBoundsFromServer(bounds);
-    }
+    window_manager_delegate_->OnWmSetBounds(window->GetWindow(),
+                                            transit_bounds);
   }
+
+  // Returning false ensures the client applies the bounds we set above in the
+  // delegate.

[mfomitchev, 2016/12/08 20:44:23]

Ditto

   if (window_manager_internal_client_)
-    window_manager_internal_client_->WmResponse(change_id, result);
+    window_manager_internal_client_->WmResponse(change_id, false);
 }
 
 void WindowTreeClient::WmSetProperty(