Make PPAPI headers compile with C compilers (gcc on Linux & Mac and MSVS on W...

ppapi/cpp/instance.cc

Index: ppapi/cpp/instance.cc
===================================================================
--- ppapi/cpp/instance.cc	(revision 65116)
+++ ppapi/cpp/instance.cc	(working copy)
@@ -6,6 +6,7 @@
 
 #include "ppapi/c/dev/ppp_printing_dev.h"
 #include "ppapi/c/ppb_instance.h"
+#include "ppapi/cpp/common.h"
 #include "ppapi/cpp/dev/scrollbar_dev.h"
 #include "ppapi/cpp/dev/widget_dev.h"
 #include "ppapi/cpp/graphics_2d.h"
@@ -83,13 +84,14 @@
 bool Instance::BindGraphics(const Graphics2D& graphics) {
   if (!ppb_instance_f)
     return false;
-  return ppb_instance_f->BindGraphics(pp_instance(), graphics.pp_resource());
+  return PPBoolToBool(ppb_instance_f->BindGraphics(pp_instance(),
+                                                   graphics.pp_resource()));
 }
 
 bool Instance::IsFullFrame() {
   if (!ppb_instance_f)
     return false;
-  return ppb_instance_f->IsFullFrame(pp_instance());
+  return PPBoolToBool(ppb_instance_f->IsFullFrame(pp_instance()));
 }
 
 Var Instance::ExecuteScript(const Var& script, Var* exception) {