Revert of Move BenchTimer to tools as Timer

tools/timer/GpuTimer.cpp

Index: tools/timer/GpuTimer.cpp
diff --git a/tools/timer/GpuTimer.cpp b/tools/timer/GpuTimer.cpp
deleted file mode 100644
index 3174449f78cd572e078d84f0b06d7af38ea4f17c..0000000000000000000000000000000000000000
--- a/tools/timer/GpuTimer.cpp
+++ /dev/null
@@ -1,74 +0,0 @@
-
-/*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#include "GpuTimer.h"
-#include "gl/SkGLContextHelper.h"
-#include "gl/GrGLUtil.h"
-
-GpuTimer::GpuTimer(const SkGLContextHelper* glctx) {
-    fContext = glctx;
-    glctx->ref();
-    glctx->makeCurrent();
-    fStarted = false;
-    fSupported = GrGLGetVersion(glctx->gl()) > GR_GL_VER(3,3) ||
-                 glctx->hasExtension("GL_ARB_timer_query") ||
-                 glctx->hasExtension("GL_EXT_timer_query");
-
-    if (fSupported) {
-        SK_GL(*glctx, GenQueries(1, &fQuery));
-    }
-}
-
-GpuTimer::~GpuTimer() {
-    if (fSupported) {
-        fContext->makeCurrent();
-        SK_GL(*fContext, DeleteQueries(1, &fQuery));
-    }
-    fContext->unref();
-}
-
-void GpuTimer::start() {
-    if (fSupported) {
-        fContext->makeCurrent();
-        fStarted = true;
-        SK_GL(*fContext, BeginQuery(GR_GL_TIME_ELAPSED, fQuery));
-    }
-}
-
-/**
- * It is important to stop the cpu clocks first,
- * as this will cpu wait for the gpu to finish.
- */
-double GpuTimer::end() {
-    if (fSupported) {
-        fStarted = false;
-        fContext->makeCurrent();
-        SK_GL(*fContext, EndQuery(GR_GL_TIME_ELAPSED));
-
-        GrGLint available = 0;
-        while (!available) {
-            SK_GL_NOERRCHECK(*fContext, GetQueryObjectiv(fQuery,
-                                                         GR_GL_QUERY_RESULT_AVAILABLE,
-                                                         &available));
-            // If GetQueryObjectiv is erroring out we need some alternative
-            // means of breaking out of this loop
-            GrGLenum error;
-            SK_GL_RET_NOERRCHECK(*fContext, error, GetError());
-            if (GR_GL_NO_ERROR != error) {
-                break;
-            }
-        }
-        GrGLuint64 totalGPUTimeElapsed = 0;
-        SK_GL(*fContext, GetQueryObjectui64v(fQuery,
-                                             GR_GL_QUERY_RESULT,
-                                             &totalGPUTimeElapsed));
-
-        return totalGPUTimeElapsed / 1000000.0;
-    } else {
-        return 0;
-    }
-}