[scheduler] Use Finch to control background throttling.

third_party/WebKit/Source/web/WebSettingsImpl.h

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 185 matching lines @@
   void setViewportEnabled(bool) override;
   void setViewportMetaEnabled(bool) override;
   void setViewportMetaLayoutSizeQuirk(bool) override;
   void setViewportMetaMergeContentQuirk(bool) override;
   void setViewportMetaNonUserScalableQuirk(bool) override;
   void setViewportMetaZeroValuesQuirk(bool) override;
   void setWebGLErrorsToConsoleEnabled(bool) override;
   void setWebSecurityEnabled(bool) override;
   void setWideViewportQuirkEnabled(bool) override;
   void setXSSAuditorEnabled(bool) override;
+  void setExpensiveBackgroundThrottlingCPUBudget(float) override;
+  void setExpensiveBackgroundThrottlingInitialBudget(float) override;
+  void setExpensiveBackgroundThrottlingMaxBudget(float) override;
+  void setExpensiveBackgroundThrottlingMaxDelay(float) override;
 
   bool showFPSCounter() const { return m_showFPSCounter; }
   bool showPaintRects() const { return m_showPaintRects; }
   bool renderVSyncNotificationEnabled() const {
     return m_renderVSyncNotificationEnabled;
   }
   bool autoZoomFocusedNodeToLegibleScale() const {
     return m_autoZoomFocusedNodeToLegibleScale;
   }
   bool doubleTapToZoomEnabled() const;
   bool perTilePaintingEnabled() const { return m_perTilePaintingEnabled; }
   bool supportDeprecatedTargetDensityDPI() const {
     return m_supportDeprecatedTargetDensityDPI;
   }
   bool viewportMetaEnabled() const;
   bool viewportMetaLayoutSizeQuirk() const {
     return m_viewportMetaLayoutSizeQuirk;
   }
   bool viewportMetaNonUserScalableQuirk() const {
     return m_viewportMetaNonUserScalableQuirk;
   }
   bool clobberUserAgentInitialScaleQuirk() const {
     return m_clobberUserAgentInitialScaleQuirk;
   }
+  float expensiveBackgroundThrottlingCPUBudget() const {
+    return m_expensiveBackgroundThrottlingCPUBudget;
+  }
+  float expensiveBackgroundThrottlingInitialBudget() const {
+    return m_expensiveBackgroundThrottlingInitialBudget;
+  }
+  float expensiveBackgroundThrottlingMaxDelay() const {
+    return m_expensiveBackgroundThrottlingMaxDelay;
+  }
+  float expensiveBackgroundThrottlingMaxBudget() const {
+    return m_expensiveBackgroundThrottlingMaxBudget;
+  }
 
   void setMockGestureTapHighlightsEnabled(bool);
   bool mockGestureTapHighlightsEnabled() const;
 
  private:
   Settings* m_settings;
   UntracedMember<DevToolsEmulator> m_devToolsEmulator;
   bool m_showFPSCounter;
   bool m_showPaintRects;
   bool m_renderVSyncNotificationEnabled;
   bool m_autoZoomFocusedNodeToLegibleScale;
   bool m_perTilePaintingEnabled;
   bool m_supportDeprecatedTargetDensityDPI;
   bool m_shrinksViewportContentToFit;
   // This quirk is to maintain compatibility with Android apps built on
   // the Android SDK prior to and including version 18. Presumably, this
   // can be removed any time after 2015. See http://crbug.com/277369.
   bool m_viewportMetaLayoutSizeQuirk;
   // This quirk is to maintain compatibility with Android apps built on
   // the Android SDK prior to and including version 18. Presumably, this
   // can be removed any time after 2015. See http://crbug.com/312691.
   bool m_viewportMetaNonUserScalableQuirk;
   // This quirk is to maintain compatibility with Android apps built on
   // the Android SDK prior to and including version 18. Presumably, this
   // can be removed any time after 2015. See http://crbug.com/313754.
   bool m_clobberUserAgentInitialScaleQuirk;
+  float m_expensiveBackgroundThrottlingCPUBudget;
+  float m_expensiveBackgroundThrottlingInitialBudget;
+  float m_expensiveBackgroundThrottlingMaxBudget;
+  float m_expensiveBackgroundThrottlingMaxDelay;
 };
 
 }  // namespace blink
 
 #endif