Merge "surfaceflinger: fix missing pure virtual declarations."

    virtual void parseArgs(const Vector<String16>& args, std::string& result) = 0;

    // Sets the max number of display frames that can be stored. Called by SF backdoor.

    virtual void setMaxDisplayFrames(uint32_t size);

    virtual void setMaxDisplayFrames(uint32_t size) = 0;

    // Computes the historical fps for the provided set of layer IDs

    // The fps is compted from the linear timeline of present timestamps for DisplayFrames

    // containing at least one layer ID.

    virtual float computeFps(const std::unordered_set<int32_t>& layerIds);

    virtual float computeFps(const std::unordered_set<int32_t>& layerIds) = 0;

    // Restores the max number of display frames to default. Called by SF backdoor.

    virtual void reset() = 0;