Delete some dead code.

ui/gfx/color_analysis_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gfx/color_analysis.h"
 
 #include <vector>
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkBitmap.h"
@@ skipping 86 matching lines @@
         current_result_index_(0) {
   }
 
   virtual ~MockKMeanImageSampler() {
   }
 
   void AddSample(int sample) {
     prebaked_sample_results_.push_back(sample);
   }
 
-  void Reset() {
-    prebaked_sample_results_.clear();
-    ResetCounter();
-  }
-
-  void ResetCounter() {
-    current_result_index_ = 0;
-  }
-
   virtual int GetSample(int width, int height) OVERRIDE {
     if (current_result_index_ >= prebaked_sample_results_.size()) {
       current_result_index_ = 0;
     }
 
     if (prebaked_sample_results_.empty()) {
       return 0;
     }
 
     return prebaked_sample_results_[current_result_index_++];
@@ skipping 344 matching lines @@
   uint8_t min_gl = 0;
   uint8_t max_gl = 0;
   Calculate8bitBitmapMinMax(result, &min_gl, &max_gl);
 
   EXPECT_EQ(0, min_gl);
   EXPECT_EQ(255, max_gl);
   EXPECT_EQ(min_gl, SkColorGetA(result.getColor(0, 0)));
   EXPECT_EQ(max_gl, SkColorGetA(result.getColor(299, 199)));
   EXPECT_EQ(93U, SkColorGetA(result.getColor(150, 0)));
 }