Add a new globals object for PPAPI tracking information.

This adds a specialization on the host and plugin side of the proxy. This
replaces the ad-hoc singleton tracking done by the resource and var trackers
with just being getters on this global object.

Most code can use the single PpapiGlobals class. I also allow code to get the
host and plugin specializations since some code needs access to some specific
features of each side.

In a later pass I'll move the other stuff out of TrackerBase and delete it.

TEST=none
BUG=none

Review URL: http://codereview.chromium.org/8316008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@106142 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 44 insertions, 0 deletions

diff --git a/webkit/plugins/ppapi/host_globals.h b/webkit/plugins/ppapi/host_globals.h
new file mode 100644
index 0000000..69b18d0
--- /dev/null
+++ b/webkit/plugins/ppapi/host_globals.h
@@ -0,0 +1,44 @@
+// 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 WEBKIT_PLUGINS_PPAPI_HOST_GLOBALS_H_
+#define WEBKIT_PLUGINS_PPAPI_HOST_GLOBALS_H_
+
+#include "base/compiler_specific.h"
+#include "ppapi/shared_impl/ppapi_globals.h"
+#include "ppapi/shared_impl/var_tracker.h"
+#include "webkit/plugins/ppapi/resource_tracker.h"
+
+namespace webkit {
+namespace ppapi {
+
+class HostGlobals : public ::ppapi::PpapiGlobals {
+ public:
+  HostGlobals();
+  virtual ~HostGlobals();
+
+  // Getter for the global singleton. Generally, you should use
+  // PpapiGlobals::Get() when possible. Use this only when you need some
+  // host-specific functionality.
+  inline static HostGlobals* Get() { return host_globals_; }
+
+  // PpapiGlobals implementation.
+  virtual ::ppapi::ResourceTracker* GetResourceTracker() OVERRIDE;
+  virtual ::ppapi::VarTracker* GetVarTracker() OVERRIDE;
+
+  ResourceTracker* host_resource_tracker() { return &host_resource_tracker_; }
+
+ private:
+  static HostGlobals* host_globals_;
+
+  ResourceTracker host_resource_tracker_;
+  ::ppapi::VarTracker host_var_tracker_;
+
+  DISALLOW_COPY_AND_ASSIGN(HostGlobals);
+};
+
+}  // namespace ppapi
+}  // namespace webkit
+
+#endif   // WEBKIT_PLUGINS_PPAPI_HOST_GLOBALS_H_