Convert resources to take an instance key instead of an Instance*.

ppapi/cpp/dev/font_dev.h

 // Copyright (c) 2011 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 PPAPI_CPP_DEV_FONT_DEV_H_
 #define PPAPI_CPP_DEV_FONT_DEV_H_
 
 #include <string>
 
 #include "ppapi/c/dev/ppb_font_dev.h"
 #include "ppapi/cpp/resource.h"
 #include "ppapi/cpp/var.h"
 
 struct PP_FontDescription_Dev;
 
 namespace pp {
 
 class ImageData;
-class Instance;
+class InstanceHandle;
 class Point;
 class Rect;
 
 // FontDescription_Dev ---------------------------------------------------------
 
 class FontDescription_Dev {
  public:
   FontDescription_Dev();
   FontDescription_Dev(const FontDescription_Dev& other);
   ~FontDescription_Dev();
@@ skipping 66 matching lines @@
 
 // Font ------------------------------------------------------------------------
 
 // Provides access to system fonts.
 class Font_Dev : public Resource {
  public:
   // Creates an is_null() Font object.
   Font_Dev();
 
   explicit Font_Dev(PP_Resource resource);
-  Font_Dev(Instance* instance, const FontDescription_Dev& description);
+  Font_Dev(const InstanceHandle& instance,
+           const FontDescription_Dev& description);
   Font_Dev(const Font_Dev& other);
 
   Font_Dev& operator=(const Font_Dev& other);
 
   // PPB_Font methods:
-  static Var GetFontFamilies(Instance* instance);
+  static Var GetFontFamilies(const InstanceHandle& instance);
   bool Describe(FontDescription_Dev* description,
                 PP_FontMetrics_Dev* metrics) const;
   bool DrawTextAt(ImageData* dest,
                   const TextRun_Dev& text,
                   const Point& position,
                   uint32_t color,
                   const Rect& clip,
                   bool image_data_is_opaque) const;
   int32_t MeasureText(const TextRun_Dev& text) const;
   uint32_t CharacterOffsetForPixel(const TextRun_Dev& text,
                                    int32_t pixel_position) const;
   int32_t PixelOffsetForCharacter(const TextRun_Dev& text,
                                   uint32_t char_offset) const;
 
   // Convenience function that assumes a left-to-right string with no clipping.
   bool DrawSimpleText(ImageData* dest,
                       const std::string& text,
                       const Point& position,
                       uint32_t color,
                       bool image_data_is_opaque = false) const;
 
   // Convenience function that assumes a left-to-right string.
   int32_t MeasureSimpleText(const std::string& text) const;
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_DEV_FONT_DEV_H_