Add DLL build support and wrapper that allows clients to transparently switch between static and dynamic CEF builds.

- The libcef project now builds libcef_static.lib instead of libcef.lib.
- The libcef_dll project builds libcef.lib and libcef.dll.  This DLL exports the new CEF C API defined in cef_capi.h, cef_nplugin_capi.h, cef_string.h and cef_string_map.h.
- The libcef_dll_wrapper project builds libcef_dll_wrapper.lib.  This static library wraps the new C API calls with an implementation of the CEF C++ interface as defined in cef.h and cef_nplugin.h.
- The cefclient project now uses the DLL instead of the static library.
- Type definitions have been moved from cef.h to cef_types.h so that they can be shared by both cef.h and cef_capi.h.  This change required some enumeration member name modifications throughout the code base.
- Fixed variable naming inconsistencies.
- Added CefVariant::GetArraySize() method and _NPN_ArrayObjectGetVectorSize() function.
- Remove the ProjectSection(WebsiteProperties) sections from cef.sln to improve VS2005 performance.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@16 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef_dll/cpptoc/cpptoc.h

@@ -0,0 +1,92 @@
+// Copyright (c) 2009 The Chromium Embedded Framework 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 _CPPTOC_H
+#define _CPPTOC_H
+
+#include "cef.h"
+#include "cef_capi.h"
+#include "base/logging.h"
+
+
+// Wrap a C++ class with a C structure.
+template <class ClassName, class StructName>
+class CefCppToC : public CefThreadSafeBase<CefBase>
+{
+public:
+  // Structure representation with pointer to the C++ class.
+  struct Struct
+  {
+    StructName struct_;
+    CefCppToC<ClassName, StructName>* class_;
+  };
+
+  CefCppToC(CefRefPtr<ClassName> cls)
+    : class_(cls)
+  {
+    DCHECK(cls.get());
+
+    struct_.class_ = this;
+    
+    // zero the underlying structure and set base members
+    memset(&struct_.struct_, 0, sizeof(StructName));
+    struct_.struct_.base.size = sizeof(StructName);
+    struct_.struct_.base.add_ref = struct_add_ref;
+    struct_.struct_.base.release = struct_release;
+  }
+  virtual ~CefCppToC()
+  {
+  }
+
+  CefRefPtr<ClassName> GetClass() { return class_; }
+
+  // If returning the structure across the DLL boundary you should call
+  // AddRef() on this CefCppToC object.  On the other side of the DLL boundary,
+  // call UnderlyingRelease() on the wrapping CefCToCpp object.
+  StructName* GetStruct() { return &struct_.struct_; }
+
+  // CefBase methods increment/decrement reference counts on both this object
+  // and the underlying wrapper class.
+  virtual int AddRef()
+  {
+    UnderlyingAddRef();
+    return CefThreadSafeBase<CefBase>::AddRef();
+  }
+  virtual int Release()
+  {
+    UnderlyingRelease();
+    return CefThreadSafeBase<CefBase>::Release();
+  }
+
+  // Increment/decrement reference counts on only the underlying class.
+  int UnderlyingAddRef() { return class_->AddRef(); }
+  int UnderlyingRelease() { return class_->Release(); }
+
+private:
+  static int CEF_CALLBACK struct_add_ref(struct _cef_base_t* base)
+  {
+    DCHECK(base);
+    if(!base)
+      return 0;
+
+    Struct* impl = reinterpret_cast<Struct*>(base);
+    return impl->class_->AddRef();
+  }
+
+  static int CEF_CALLBACK struct_release(struct _cef_base_t* base)
+  {
+    DCHECK(base);
+    if(!base)
+      return 0;
+
+    Struct* impl = reinterpret_cast<Struct*>(base);
+    return impl->class_->Release();
+  }
+
+protected:
+  Struct struct_;
+  CefRefPtr<ClassName> class_;
+};
+
+#endif // _CPPTOC_H