Revert of Only release the pointer lock when the RenderWidgetHost being destroyed

content/browser/pointer_lock_browsertest.cc

Index: content/browser/pointer_lock_browsertest.cc
diff --git a/content/browser/pointer_lock_browsertest.cc b/content/browser/pointer_lock_browsertest.cc
index 46fde73b719a92cd480fac0f78ab92d58b611237..07dd093a4185711d0b5d1c223db18f486658313e 100644
--- a/content/browser/pointer_lock_browsertest.cc
+++ b/content/browser/pointer_lock_browsertest.cc
@@ -272,39 +272,4 @@
   EXPECT_EQ(17, movementY);
 }
 
-// Tests that the browser will not unlock the pointer if a RenderWidgetHostView
-// that doesn't hold the pointer lock is destroyed.
-IN_PROC_BROWSER_TEST_F(PointerLockBrowserTest, PointerLockChildFrameDetached) {
-  GURL main_url(embedded_test_server()->GetURL(
-      "a.com", "/cross_site_iframe_factory.html?a(b)"));
-  EXPECT_TRUE(NavigateToURL(shell(), main_url));
-
-  FrameTreeNode* root = web_contents()->GetFrameTree()->root();
-
-  // Request a pointer lock on the root frame's body.
-  EXPECT_TRUE(ExecuteScript(root, "document.body.requestPointerLock()"));
-
-  // Root frame should have been granted pointer lock.
-  bool locked = false;
-  EXPECT_TRUE(ExecuteScriptAndExtractBool(root,
-                                          "window.domAutomationController.send("
-                                          "document.pointerLockElement == "
-                                          "document.body);",
-                                          &locked));
-  EXPECT_TRUE(locked);
-
-  // Root (platform) RenderWidgetHostView should have the pointer locked.
-  EXPECT_TRUE(root->current_frame_host()->GetView()->IsMouseLocked());
-  EXPECT_EQ(root->current_frame_host()->GetRenderWidgetHost(),
-            web_contents()->GetMouseLockWidget());
-
-  // Detach the child frame.
-  EXPECT_TRUE(ExecuteScript(root, "document.querySelector('iframe').remove()"));
-
-  // Root (platform) RenderWidgetHostView should still have the pointer locked.
-  EXPECT_TRUE(root->current_frame_host()->GetView()->IsMouseLocked());
-  EXPECT_EQ(root->current_frame_host()->GetRenderWidgetHost(),
-            web_contents()->GetMouseLockWidget());
-}
-
 }  // namespace content