Move RTL related functions from app/l10n_util to base/i18n/rtl...

app/gfx/canvas.h

 // Copyright (c) 2006-2008 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 APP_GFX_CANVAS_H_
 #define APP_GFX_CANVAS_H_
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
@@ skipping 193 matching lines @@
   void DrawGdkPixbuf(GdkPixbuf* pixbuf, int x, int y);
 #endif
 
   // Compute the size required to draw some text with the provided font.
   // Attempts to fit the text with the provided width and height. Increases
   // height and then width as needed to make the text fit. This method
   // supports multiple lines.
   static void SizeStringInt(const std::wstring& test, const gfx::Font& font,
                             int *width, int* height, int flags);
 
+  // Returns the default text alignment to be used when drawing text on a
+  // gfx::Canvas based on the directionality of the system locale language. This
+  // function is used by gfx::Canvas::DrawStringInt when the text alignment is
+  // not specified.
+  //
+  // This function returns either gfx::Canvas::TEXT_ALIGN_LEFT or
+  // gfx::Canvas::TEXT_ALIGN_RIGHT.
+  static int DefaultCanvasTextAlignment();
+
  private:
 #if defined(OS_WIN)
   // Draws text with the specified color, font and location. The text is
   // aligned to the left, vertically centered, clipped to the region. If the
   // text is too big, it is truncated and '...' is added to the end.
   void DrawStringInt(const std::wstring& text, HFONT font,
                      const SkColor& color, int x, int y, int w, int h,
                      int flags);
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(Canvas);
 };
 
 }  // namespace gfx;
 
 #endif  // APP_GFX_CANVAS_H_