Implement in-process PPB_VarArrayBuffer_Dev.

+tony TBR for webkit/glue/webkit_glue.gypi

BUG=103435
TEST=N/A
TBR=tony

Review URL: http://codereview.chromium.org/8930010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@114700 0039d316-1c4b-4281-b951-d872f2087c98

7 files changed, 78 insertions, 14 deletions

diff --git a/ppapi/proxy/plugin_array_buffer_var.cc b/ppapi/proxy/plugin_array_buffer_var.cc
new file mode 100644
index 0000000..d88ca7b
--- /dev/null
+++ b/ppapi/proxy/plugin_array_buffer_var.cc
@@ -0,0 +1,31 @@
+// 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.
+
+#include "ppapi/proxy/plugin_array_buffer_var.h"
+
+#include <stdlib.h>
+
+#include <limits>
+
+namespace ppapi {
+
+PluginArrayBufferVar::PluginArrayBufferVar(uint32 size_in_bytes)
+    : buffer_(size_in_bytes) {
+}
+
+PluginArrayBufferVar::~PluginArrayBufferVar() {
+}
+
+void* PluginArrayBufferVar::Map() {
+  if (buffer_.empty())
+    return NULL;
+  return &(buffer_[0]);
+}
+
+uint32 PluginArrayBufferVar::ByteLength() {
+  return buffer_.size();
+}
+
+}  // namespace ppapi
+
diff --git a/ppapi/proxy/plugin_array_buffer_var.h b/ppapi/proxy/plugin_array_buffer_var.h
new file mode 100644
index 0000000..5e4d702
--- /dev/null
+++ b/ppapi/proxy/plugin_array_buffer_var.h
@@ -0,0 +1,36 @@
+// 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_PROXY_PLUGIN_ARRAY_BUFFER_VAR_H_
+#define PPAPI_PROXY_PLUGIN_ARRAY_BUFFER_VAR_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "ppapi/c/pp_stdint.h"
+#include "ppapi/shared_impl/var.h"
+
+namespace ppapi {
+
+// Represents a plugin-side ArrayBufferVar. In the plugin process, it's
+// owned as a vector.
+class PluginArrayBufferVar : public ArrayBufferVar {
+ public:
+  explicit PluginArrayBufferVar(uint32 size_in_bytes);
+  virtual ~PluginArrayBufferVar();
+
+  // ArrayBufferVar implementation.
+  virtual void* Map() OVERRIDE;
+  virtual uint32 ByteLength() OVERRIDE;
+
+ private:
+  // TODO(dmichael): Use shared memory for this.
+  std::vector<uint8> buffer_;
+
+  DISALLOW_COPY_AND_ASSIGN(PluginArrayBufferVar);
+};
+
+}  // namespace ppapi
+
+#endif  // PPAPI_PROXY_PLUGIN_ARRAY_BUFFER_VAR_H_
diff --git a/ppapi/proxy/plugin_var_tracker.cc b/ppapi/proxy/plugin_var_tracker.cc
index 8ea25b1..a5f499a 100644
--- a/ppapi/proxy/plugin_var_tracker.cc
+++ b/ppapi/proxy/plugin_var_tracker.cc
@@ -7,6 +7,7 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/singleton.h"
 #include "ppapi/c/ppb_var.h"
+#include "ppapi/proxy/plugin_array_buffer_var.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/proxy_object_var.h"
@@ -156,6 +157,10 @@ int PluginVarTracker::GetTrackedWithNoReferenceCountForObject(
   return found->second.track_with_no_reference_count;
 }
 
+ArrayBufferVar* PluginVarTracker::CreateArrayBuffer(uint32 size_in_bytes) {
+  return new PluginArrayBufferVar(size_in_bytes);
+}
+
 int32 PluginVarTracker::AddVarInternal(Var* var, AddVarRefMode mode) {
   // Normal adding.
   int32 new_id = VarTracker::AddVarInternal(var, mode);
diff --git a/ppapi/proxy/plugin_var_tracker.h b/ppapi/proxy/plugin_var_tracker.h
index b6bb893..c2ede10 100644
--- a/ppapi/proxy/plugin_var_tracker.h
+++ b/ppapi/proxy/plugin_var_tracker.h
@@ -62,12 +62,13 @@ class PPAPI_PROXY_EXPORT PluginVarTracker : public VarTracker {
   int GetRefCountForObject(const PP_Var& plugin_object);
   int GetTrackedWithNoReferenceCountForObject(const PP_Var& plugin_object);
 
- protected:
+ private:
   // VarTracker protected overrides.
   virtual int32 AddVarInternal(Var* var, AddVarRefMode mode) OVERRIDE;
   virtual void TrackedObjectGettingOneRef(VarMap::const_iterator iter) OVERRIDE;
   virtual void ObjectGettingZeroRef(VarMap::iterator iter) OVERRIDE;
   virtual bool DeleteObjectInfoIfNecessary(VarMap::iterator iter) OVERRIDE;
+  virtual ArrayBufferVar* CreateArrayBuffer(uint32 size_in_bytes) OVERRIDE;
 
  private:
   friend struct DefaultSingletonTraits<PluginVarTracker>;
diff --git a/ppapi/proxy/proxy_object_var.cc b/ppapi/proxy/proxy_object_var.cc
index 4a185e8..acd53f3 100644
--- a/ppapi/proxy/proxy_object_var.cc
+++ b/ppapi/proxy/proxy_object_var.cc
@@ -27,17 +27,6 @@ ProxyObjectVar* ProxyObjectVar::AsProxyObjectVar() {
   return this;
 }
 
-PP_Var ProxyObjectVar::GetPPVar() {
-  int32 id = GetOrCreateVarID();
-  if (!id)
-    return PP_MakeNull();
-
-  PP_Var result;
-  result.type = PP_VARTYPE_OBJECT;
-  result.value.as_id = id;
-  return result;
-}
-
 PP_VarType ProxyObjectVar::GetType() const {
   return PP_VARTYPE_OBJECT;
 }
diff --git a/ppapi/proxy/proxy_object_var.h b/ppapi/proxy/proxy_object_var.h
index e8d7aed..e9760f9 100644
--- a/ppapi/proxy/proxy_object_var.h
+++ b/ppapi/proxy/proxy_object_var.h
@@ -26,7 +26,6 @@ class ProxyObjectVar : public Var {
 
   // Var overrides.
   virtual ProxyObjectVar* AsProxyObjectVar() OVERRIDE;
-  virtual PP_Var GetPPVar() OVERRIDE;
   virtual PP_VarType GetType() const OVERRIDE;
 
   proxy::PluginDispatcher* dispatcher() const { return dispatcher_; }
diff --git a/ppapi/proxy/serialized_var.cc b/ppapi/proxy/serialized_var.cc
index 7a9eb6f..b892daf 100644
--- a/ppapi/proxy/serialized_var.cc
+++ b/ppapi/proxy/serialized_var.cc
@@ -152,12 +152,15 @@ void SerializedVar::Inner::WriteToMessage(IPC::Message* m) const {
       // what looks like a valid empty string.
       m->WriteString(string_value_);
       break;
+    case PP_VARTYPE_ARRAY_BUFFER:
+      // TODO(dmichael): Proxy ArrayBuffer.
+      NOTIMPLEMENTED();
+      break;
     case PP_VARTYPE_OBJECT:
       m->WriteInt64(var_.value.as_id);
       break;
     case PP_VARTYPE_ARRAY:
     case PP_VARTYPE_DICTIONARY:
-    case PP_VARTYPE_ARRAY_BUFFER:
       // TODO(brettw) when these are supported, implement this.
       NOTIMPLEMENTED();
       break;