Remove third_party/golang.org/x/mobile as it is no longer used with Go 1.5.

third_party/go/src/golang.org/x/mobile/app/debug/fps.go

Index: third_party/go/src/golang.org/x/mobile/app/debug/fps.go
diff --git a/third_party/go/src/golang.org/x/mobile/app/debug/fps.go b/third_party/go/src/golang.org/x/mobile/app/debug/fps.go
deleted file mode 100644
index 4d1d0b2498f09c07de3b78545488ec39bddc00b5..0000000000000000000000000000000000000000
--- a/third_party/go/src/golang.org/x/mobile/app/debug/fps.go
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package debug provides GL-based debugging tools for apps.
-package debug // import "golang.org/x/mobile/app/debug"
-
-import (
-	"fmt"
-	"image"
-	"image/draw"
-	"log"
-	"math"
-	"sync"
-	"time"
-
-	"code.google.com/p/freetype-go/freetype"
-	"golang.org/x/mobile/font"
-	"golang.org/x/mobile/geom"
-	"golang.org/x/mobile/gl/glutil"
-)
-
-var lastDraw = time.Now()
-
-var monofont = freetype.NewContext()
-
-var fps struct {
-	sync.Once
-	*glutil.Image
-}
-
-// TODO(crawshaw): It looks like we need a gl.RegisterInit feature.
-// TODO(crawshaw): The gldebug mode needs to complain loudly when GL functions
-//                 are called before init, because often they fail silently.
-func fpsInit() {
-	b := font.Monospace()
-	f, err := freetype.ParseFont(b)
-	if err != nil {
-		panic(err)
-	}
-	monofont.SetFont(f)
-	monofont.SetSrc(image.Black)
-	monofont.SetHinting(freetype.FullHinting)
-
-	toPx := func(x geom.Pt) int { return int(math.Ceil(float64(geom.Pt(x).Px()))) }
-	fps.Image = glutil.NewImage(toPx(50), toPx(12))
-	monofont.SetDst(fps.Image.RGBA)
-	monofont.SetClip(fps.Bounds())
-	monofont.SetDPI(72 * float64(geom.PixelsPerPt))
-	monofont.SetFontSize(12)
-}
-
-// DrawFPS draws the per second framerate in the bottom-left of the screen.
-func DrawFPS() {
-	fps.Do(fpsInit)
-
-	now := time.Now()
-	diff := now.Sub(lastDraw)
-	str := fmt.Sprintf("%.0f FPS", float32(time.Second)/float32(diff))
-	draw.Draw(fps.Image, fps.Image.Rect, image.White, image.Point{}, draw.Src)
-
-	ftpt12 := freetype.Pt(0, int(12*geom.PixelsPerPt))
-	if _, err := monofont.DrawString(str, ftpt12); err != nil {
-		log.Printf("DrawFPS: %v", err)
-		return
-	}
-
-	fps.Upload()
-	fps.Draw(
-		geom.Point{0, geom.Height - 12},
-		geom.Point{50, geom.Height - 12},
-		geom.Point{0, geom.Height},
-		fps.Bounds(),
-	)
-
-	lastDraw = now
-}