Move copyToImage to Image::copy.

src/libGLESv2/Texture.h

@@ -118,6 +118,8 @@ class Image
     void loadDXT5Data(GLint xoffset, GLint yoffset, GLsizei width, GLsizei height,
                       int inputPitch, const void *input, size_t outputPitch, void *output) const;
 
+    void copy(GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height, IDirect3DSurface9 *renderTarget);
+
   private:
     DISALLOW_COPY_AND_ASSIGN(Image);
 
@@ -181,7 +183,6 @@ class Texture : public RefCountObject
     bool subImage(GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, GLint unpackAlignment, const void *pixels, Image *image);
     void setCompressedImage(GLsizei imageSize, const void *pixels, Image *image);
     bool subImageCompressed(GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *pixels, Image *image);
-    void copyToImage(Image *image, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height, IDirect3DSurface9 *renderTarget);
 
     GLint creationLevels(GLsizei width, GLsizei height, GLint maxlevel) const;
     GLint creationLevels(GLsizei size, GLint maxlevel) const;