Merge "Remove ATRACE_TAG_APP from atrace's control" into pi-dev

    { "video",      "Video",            ATRACE_TAG_VIDEO, { } },

    { "camera",     "Camera",           ATRACE_TAG_CAMERA, { } },

    { "hal",        "Hardware Modules", ATRACE_TAG_HAL, { } },

    { "app",        "Application",      ATRACE_TAG_APP, { } },

    { "res",        "Resource Loading", ATRACE_TAG_RESOURCES, { } },

    { "dalvik",     "Dalvik VM",        ATRACE_TAG_DALVIK, { } },

    { "rs",         "RenderScript",     ATRACE_TAG_RS, { } },