Remove last dependencies on ui/base from ui/gfx

ui/gfx/color_analysis.h

 // 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.
 
 #ifndef UI_GFX_COLOR_ANALYSIS_H_
 #define UI_GFX_COLOR_ANALYSIS_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/ref_counted_memory.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/gfx_export.h"
 #include "ui/gfx/matrix3_f.h"
 
 class SkBitmap;
 
 namespace color_utils {
 
 // This class exposes the sampling method to the caller, which allows
 // stubbing out for things like unit tests. Might be useful to pass more
 // arguments into the GetSample method in the future (such as which
 // cluster is being worked on, etc.).
 //
 // Note: Samplers should be deterministic, as the same image may be analyzed
 // twice with two sampler instances and the results displayed side-by-side
 // to the user.
-class UI_EXPORT KMeanImageSampler {
+class GFX_EXPORT KMeanImageSampler {
  public:
   virtual int GetSample(int width, int height) = 0;
 
  protected:
   KMeanImageSampler();
   virtual ~KMeanImageSampler();
 };
 
 // This sampler will pick pixels from an evenly spaced grid.
-class UI_EXPORT GridSampler : public KMeanImageSampler {
+class GFX_EXPORT GridSampler : public KMeanImageSampler {
   public:
    GridSampler();
    virtual ~GridSampler();
 
    virtual int GetSample(int width, int height) OVERRIDE;
 
   private:
    // The number of times GetSample has been called.
    int calls_;
 };
 
 // Returns the color in an ARGB |image| that is closest in RGB-space to the
 // provided |color|. Exported for testing.
-UI_EXPORT SkColor FindClosestColor(const uint8_t* image, int width, int height,
-                                   SkColor color);
+GFX_EXPORT SkColor FindClosestColor(const uint8_t* image, int width, int height,
+                                    SkColor color);
 
 // Returns an SkColor that represents the calculated dominant color in the png.
 // This uses a KMean clustering algorithm to find clusters of pixel colors in
 // RGB space.
 // |png| represents the data of a png encoded image.
 // |darkness_limit| represents the minimum sum of the RGB components that is
 // acceptable as a color choice. This can be from 0 to 765.
 // |brightness_limit| represents the maximum sum of the RGB components that is
 // acceptable as a color choice. This can be from 0 to 765.
 //
@@ skipping 18 matching lines @@
 //   the clusters by weight (where weight is the number of pixels that make up
 //   this cluster).
 // 6.Going through the sorted list of clusters, pick the first cluster with the
 //   largest weight that's centroid fulfills the equation
 //   |darkness_limit| < SUM(R, G, B) < |brightness_limit|. Return that color.
 //   If no color fulfills that requirement return the color with the largest
 //   weight regardless of whether or not it fulfills the equation above.
 //
 // Note: Switching to HSV space did not improve the results of this algorithm
 // for typical favicon images.
-UI_EXPORT SkColor CalculateKMeanColorOfPNG(
+GFX_EXPORT SkColor CalculateKMeanColorOfPNG(
     scoped_refptr<base::RefCountedMemory> png,
     uint32_t darkness_limit,
     uint32_t brightness_limit,
     KMeanImageSampler* sampler);
 
 // Computes a dominant color for an SkBitmap using the above algorithm and
 // reasonable defaults for |darkness_limit|, |brightness_limit| and |sampler|.
-UI_EXPORT SkColor CalculateKMeanColorOfBitmap(const SkBitmap& bitmap);
+GFX_EXPORT SkColor CalculateKMeanColorOfBitmap(const SkBitmap& bitmap);
 
 // Compute color covariance matrix for the input bitmap.
-UI_EXPORT gfx::Matrix3F ComputeColorCovariance(const SkBitmap& bitmap);
+GFX_EXPORT gfx::Matrix3F ComputeColorCovariance(const SkBitmap& bitmap);
 
 // Apply a color reduction transform defined by |color_transform| vector to
 // |source_bitmap|. The result is put into |target_bitmap|, which is expected
 // to be initialized to the required size and type (SkBitmap::kA8_Config).
 // If |fit_to_range|, result is transfored linearly to fit 0-0xFF range.
 // Otherwise, data is clipped.
 // Returns true if the target has been computed.
-UI_EXPORT bool ApplyColorReduction(const SkBitmap& source_bitmap,
+GFX_EXPORT bool ApplyColorReduction(const SkBitmap& source_bitmap,
                                    const gfx::Vector3dF& color_transform,
                                    bool fit_to_range,
                                    SkBitmap* target_bitmap);
 
 // Compute a monochrome image representing the principal color component of
 // the |source_bitmap|. The result is stored in |target_bitmap|, which must be
 // initialized to the required size and type (SkBitmap::kA8_Config).
 // Returns true if the conversion succeeded. Note that there might be legitimate
 // reasons for the process to fail even if all input was correct. This is a
 // condition the caller must be able to handle.
-UI_EXPORT bool ComputePrincipalComponentImage(const SkBitmap& source_bitmap,
+GFX_EXPORT bool ComputePrincipalComponentImage(const SkBitmap& source_bitmap,
                                               SkBitmap* target_bitmap);
 
 }  // namespace color_utils
 
 #endif  // UI_GFX_COLOR_ANALYSIS_H_