Fixes regression in painting info bubble. This is the result of...

chrome/common/gfx/chrome_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 CHROME_COMMON_GFX_CHROME_CANVAS_H_
 #define CHROME_COMMON_GFX_CHROME_CANVAS_H_
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
@@ skipping 87 matching lines @@
 
   // Draws a single pixel line in the specified region with the specified
   // color, using a transfer mode of SkPorterDuff::kSrcOver_Mode.
   void DrawRectInt(const SkColor& color, int x, int y, int w, int h);
 
   // Draws a single pixel line in the specified region with the specified
   // color and transfer mode.
   void DrawRectInt(const SkColor& color, int x, int y, int w, int h,
                    SkPorterDuff::Mode mode);
 
+  // Draws a single pixel line with the specified color.
+  void DrawLineInt(const SkColor& color, int x1, int y1, int x2, int y2);
+
   // Draws a bitmap with the origin at the specified location. The upper left
   // corner of the bitmap is rendered at the specified location.
   void DrawBitmapInt(const SkBitmap& bitmap, int x, int y);
 
   // Draws a bitmap with the origin at the specified location, using the
   // specified paint. The upper left corner of the bitmap is rendered at the
   // specified location.
   void DrawBitmapInt(const SkBitmap& bitmap, int x, int y,
                      const SkPaint& paint);
 
@@ skipping 68 matching lines @@
 #endif
 
   DISALLOW_EVIL_CONSTRUCTORS(ChromeCanvas);
 };
 
 #if defined(OS_WIN) || defined(TOOLKIT_GTK)
 typedef skia::CanvasPaintT<ChromeCanvas> ChromeCanvasPaint;
 #endif
 
 #endif  // CHROME_COMMON_GFX_CHROME_CANVAS_H_