GTK Themes: A gtkrc file can now override our choice of frame color by

base/gfx/gtk_util.h

Index: base/gfx/gtk_util.h
diff --git a/base/gfx/gtk_util.h b/base/gfx/gtk_util.h
index c219dabd857a170c037a38808ac5d2bb476cd52c..523f7bf974ca995b6473dd3aff48b1a1a23efa13 100644
--- a/base/gfx/gtk_util.h
+++ b/base/gfx/gtk_util.h
@@ -18,10 +18,13 @@ typedef struct _GdkRegion GdkRegion;
 
 class SkBitmap;
 
+const int kSkiaToGDKMultiplier = 257;
+
 // Define a macro for creating GdkColors from RGB values.  This is a macro to
 // allow static construction of literals, etc.  Use this like:
 //   GdkColor white = GDK_COLOR_RGB(0xff, 0xff, 0xff);
-#define GDK_COLOR_RGB(r, g, b) {0, r * 257, g * 257, b * 257}
+#define GDK_COLOR_RGB(r, g, b) {0, r * kSkiaToGDKMultiplier, \
+        g * kSkiaToGDKMultiplier, b * kSkiaToGDKMultiplier}
 
 namespace gfx {