Rework gfx::Font by moving platform-specific code into inner classes....

gfx/native_widget_types.h

 // Copyright (c) 2009 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 GFX_NATIVE_WIDGET_TYPES_H_
 #define GFX_NATIVE_WIDGET_TYPES_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "build/build_config.h"
@@ skipping 17 matching lines @@
 //
 //   NativeEditView: a handle to a native edit-box. The Mac folks wanted this
 //     specific typedef.
 //
 // The name 'View' here meshes with OS X where the UI elements are called
 // 'views' and with our Chrome UI code where the elements are also called
 // 'views'.
 
 #if defined(OS_WIN)
 #include <windows.h>
+typedef struct HFONT__* HFONT;
 #elif defined(OS_MACOSX)
 struct CGContext;
 #ifdef __OBJC__
+@class NSFont;
 @class NSView;
 @class NSWindow;
 @class NSTextField;
 #else
+class NSFont;
 class NSView;
 class NSWindow;
 class NSTextField;
 #endif  // __OBJC__
 #elif defined(TOOLKIT_USES_GTK)
+typedef struct _PangoFontDescription PangoFontDescription;
 typedef struct _GdkCursor GdkCursor;
 typedef struct _GdkRegion GdkRegion;
 typedef struct _GtkWidget GtkWidget;
 typedef struct _GtkWindow GtkWindow;
 typedef struct _cairo cairo_t;
 #endif
 
 namespace gfx {
 
 #if defined(OS_WIN)
+typedef HFONT NativeFont;
 typedef HWND NativeView;
 typedef HWND NativeWindow;
 typedef HWND NativeEditView;
 typedef HDC NativeDrawingContext;
 typedef HCURSOR NativeCursor;
 typedef HMENU NativeMenu;
 typedef HRGN NativeRegion;
 #elif defined(OS_MACOSX)
+typedef NSFont* NativeFont;
 typedef NSView* NativeView;
 typedef NSWindow* NativeWindow;
 typedef NSTextField* NativeEditView;
 typedef CGContext* NativeDrawingContext;
 typedef void* NativeCursor;
 typedef void* NativeMenu;
 #elif defined(USE_X11)
+typedef PangoFontDescription* NativeFont;
 typedef GtkWidget* NativeView;
 typedef GtkWindow* NativeWindow;
 typedef GtkWidget* NativeEditView;
 typedef cairo_t* NativeDrawingContext;
 typedef GdkCursor* NativeCursor;
 typedef GtkWidget* NativeMenu;
 typedef GdkRegion* NativeRegion;
 #endif
 
 // Note: for test_shell we're packing a pointer into the NativeViewId. So, if
@@ skipping 59 matching lines @@
   // GPU plugin becomes a full-on GPU process, this typedef can be
   // returned to a bool. For now we use a type large enough to hold a
   // pointer on 64-bit architectures in case we need this capability.
   typedef uint64 PluginWindowHandle;
   const PluginWindowHandle kNullPluginWindow = 0;
 #endif
 
 }  // namespace gfx
 
 #endif  // GFX_NATIVE_WIDGET_TYPES_H_