Implement pointer lock API for out-of-process iframes.

third_party/WebKit/public/web/WebViewClient.h

Index: third_party/WebKit/public/web/WebViewClient.h
diff --git a/third_party/WebKit/public/web/WebViewClient.h b/third_party/WebKit/public/web/WebViewClient.h
index a41ebe62535a14820ac43f2f9439cfff3087e33e..02ecea288f6e263178bb3fdd28dac1b96c5642d6 100644
--- a/third_party/WebKit/public/web/WebViewClient.h
+++ b/third_party/WebKit/public/web/WebViewClient.h
@@ -286,11 +286,8 @@ public:
     void didUpdateTextOfFocusedElementByNonUserInput() override {}
     void hasTouchEventHandlers(bool) override {}
     void initializeLayerTreeView() override {}
-    bool isPointerLocked() override { return false; }
     WebLayerTreeView* layerTreeView() override { return 0; }
     void onMouseDown(const WebNode& mouseDownNode) override {}
-    bool requestPointerLock() override { return false; }
-    void requestPointerUnlock() override {}
     void resetInputMethod() override {}
     WebRect rootWindowRect() override { return WebRect(); }
     void scheduleAnimation() override {}