Timeline: show white overlay till page being reloaded paints

third_party/WebKit/Source/web/InspectorOverlay.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 65 matching lines @@
     DECLARE_TRACE();
 
     void init(InspectorCSSAgent*, V8InspectorSession*, InspectorDOMAgent*);
 
     void clear();
     void suspend();
     void resume();
     bool handleInputEvent(const WebInputEvent&);
     void pageLayoutInvalidated(bool resized);
     void setShowViewportSizeOnResize(bool);
+    void setReloadingBanner(const String&);
+    void maybeClearReloadingBanner();
     void setPausedInDebuggerMessage(const String&);
 
     // Does not yet include paint.
     void updateAllLifecyclePhases();
 
     PageOverlay* pageOverlay() { return m_pageOverlay.get(); };
     String evaluateInOverlayForTest(const String&);
 
 private:
+    enum class MessageType {

[dgozman, 2016/08/08 16:28:00]

Can we have a single message?

+        Empty,
+        Reloading,
+        PausedInDebugger
+    };
     explicit InspectorOverlay(WebViewImpl*);
     class InspectorOverlayChromeClient;
     class InspectorPageOverlayDelegate;
 
     // InspectorOverlayHost::Listener implementation.
     void overlayResumed() override;
     void overlaySteppedOver() override;
     void overlayStartedPropertyChange(const String&) override;
     void overlayPropertyChanged(float) override;
     void overlayEndedPropertyChange() override;
     void overlayClearSelection(bool) override;
     void overlayNextSelector() override;
     void overlayPreviousSelector() override;
 
     // InspectorDOMAgent::Client implementation.
     void hideHighlight() override;
     void highlightNode(Node*, const InspectorHighlightConfig&, bool omitTooltip) override;
     void highlightQuad(std::unique_ptr<FloatQuad>, const InspectorHighlightConfig&) override;
     void setInspectMode(InspectorDOMAgent::SearchMode, std::unique_ptr<InspectorHighlightConfig>) override;
     void setInspectedNode(Node*) override;
 
     void highlightNode(Node*, Node* eventTarget, const InspectorHighlightConfig&, bool omitTooltip);
     bool isEmpty();
     void drawNodeHighlight();
     void drawQuadHighlight();
-    void drawPausedInDebuggerMessage();
+    void drawMessages();
     void drawViewSize();
 
     float windowToViewportScale() const;
 
     Page* overlayPage();
     LocalFrame* overlayMainFrame();
     void reset(const IntSize& viewportSize, const IntPoint& documentScrollOffset);
     void evaluateInOverlay(const String& method, const String& argument);
     void evaluateInOverlay(const String& method, std::unique_ptr<protocol::Value> argument);
     void onTimer(TimerBase*);
     void rebuildOverlayPage();
     void invalidate();
     void scheduleUpdate();
     void clearInternal();
 
     bool handleMousePress();
     bool handleGestureEvent(const PlatformGestureEvent&);
     bool handleTouchEvent(const PlatformTouchEvent&);
     bool handleMouseMove(const PlatformMouseEvent&);
     bool shouldSearchForNode();
     void inspect(Node*);
     void initializeLayoutEditorIfNeeded(Node*);
 
     WebViewImpl* m_webViewImpl;
-    String m_pausedInDebuggerMessage;
+    String m_message;
+    MessageType m_messageType;
     Member<Node> m_highlightNode;
     Member<Node> m_eventTargetNode;
     InspectorHighlightConfig m_nodeHighlightConfig;
     std::unique_ptr<FloatQuad> m_highlightQuad;
     Member<Page> m_overlayPage;
     Member<InspectorOverlayChromeClient> m_overlayChromeClient;
     Member<InspectorOverlayHost> m_overlayHost;
     InspectorHighlightConfig m_quadHighlightConfig;
     bool m_drawViewSize;
     bool m_resizeTimerActive;
     bool m_omitTooltip;
     Timer<InspectorOverlay> m_timer;
     bool m_suspended;
     bool m_inLayout;
     bool m_needsUpdate;
     V8InspectorSession* m_v8Session;
     Member<InspectorDOMAgent> m_domAgent;
     Member<InspectorCSSAgent> m_cssAgent;
     Member<LayoutEditor> m_layoutEditor;
     std::unique_ptr<PageOverlay> m_pageOverlay;
     Member<Node> m_hoveredNodeForInspectMode;
     InspectorDOMAgent::SearchMode m_inspectMode;
     std::unique_ptr<InspectorHighlightConfig> m_inspectModeHighlightConfig;
 };
 
 } // namespace blink
 
 
 #endif // InspectorOverlay_h