Fix clang warnings

#define PROFILE_DRAW_DP_PER_MS 7

// Must be NUM_ELEMENTS in size

static const SkColor CURRENT_FRAME_COLOR = 0xcf5faa4d;

static const SkColor THRESHOLD_COLOR = 0xff5faa4d;

static const SkColor BAR_FAST_ALPHA = 0x8F000000;

static const SkColor BAR_JANKY_ALPHA = 0xDF000000;