Move resource related IPCs to their own file in content. I added a IPC_STRUCT_TRAITS_PARENT macro to allow the automatic serializing macros to add a parent struct.

TBR=tsepez
Review URL: http://codereview.chromium.org/6628035

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@77048 0039d316-1c4b-4281-b951-d872f2087c98

7 files changed, 19 insertions, 3 deletions

diff --git a/ipc/ipc_message_macros.h b/ipc/ipc_message_macros.h
index de1132e..b8885dc 100644
--- a/ipc/ipc_message_macros.h
+++ b/ipc/ipc_message_macros.h
@@ -130,9 +130,11 @@
 //
 // Externally-defined structs are registered with IPC_STRUCT_TRAITS_BEGIN(),
 // IPC_STRUCT_TRAITS_MEMBER(), and IPC_STRUCT_TRAITS_END() macros. These
-// cause registration of the types with message generation only.  Note that
-// IPC_STRUCT_TRAITS_MEMBER() is only permitted inside matching calls
-// to IPC_STRUCT_TRAITS_BEGIN() / IPC_STRUCT_TRAITS_END().
+// cause registration of the types with message generation only.
+// There's also IPC_STRUCT_TRAITS_PARENT, which is used to register a parent
+// class (whose own traits are already defined). Note that
+// IPC_STRUCT_TRAITS_MEMBER() and IPC_STRUCT_TRAITS_PARENT are only permitted
+// inside matching calls to IPC_STRUCT_TRAITS_BEGIN() / IPC_STRUCT_TRAITS_END().
 //
 // Enum types are registered with a single IPC_ENUM_TRAITS() macro.  There
 // is no need to enumerate each value to the IPC mechanism.
diff --git a/ipc/ipc_message_null_macros.h b/ipc/ipc_message_null_macros.h
index 2c33172..fb57df5 100644
--- a/ipc/ipc_message_null_macros.h
+++ b/ipc/ipc_message_null_macros.h
@@ -11,6 +11,7 @@
 #undef IPC_STRUCT_END
 #undef IPC_STRUCT_TRAITS_BEGIN
 #undef IPC_STRUCT_TRAITS_MEMBER
+#undef IPC_STRUCT_TRAITS_PARENT
 #undef IPC_STRUCT_TRAITS_END
 #undef IPC_ENUM_TRAITS
 #undef IPC_MESSAGE_CONTROL0
@@ -91,6 +92,7 @@
 #define IPC_STRUCT_END()
 #define IPC_STRUCT_TRAITS_BEGIN(struct_name)
 #define IPC_STRUCT_TRAITS_MEMBER(name)
+#define IPC_STRUCT_TRAITS_PARENT(type)
 #define IPC_STRUCT_TRAITS_END()
 #define IPC_ENUM_TRAITS(enum_name)
 #define IPC_MESSAGE_CONTROL0(msg_class)
diff --git a/ipc/ipc_message_utils.h b/ipc/ipc_message_utils.h
index f7bf49a..800daaf 100644
--- a/ipc/ipc_message_utils.h
+++ b/ipc/ipc_message_utils.h
@@ -71,6 +71,7 @@ enum IPCMessageStart {
   SafeBrowsingMsgStart,
   P2PMsgStart,
   SocketStreamMsgStart,
+  ResourceMsgStart,
 };
 
 class DictionaryValue;
diff --git a/ipc/param_traits_log_macros.h b/ipc/param_traits_log_macros.h
index 40f8ec4..de2006c 100644
--- a/ipc/param_traits_log_macros.h
+++ b/ipc/param_traits_log_macros.h
@@ -21,6 +21,7 @@
 // Set up so next include will generate log methods.
 #undef IPC_STRUCT_TRAITS_BEGIN
 #undef IPC_STRUCT_TRAITS_MEMBER
+#undef IPC_STRUCT_TRAITS_PARENT
 #undef IPC_STRUCT_TRAITS_END
 #define IPC_STRUCT_TRAITS_BEGIN(struct_name) \
   void ParamTraits<struct_name>::Log(const param_type& p, std::string* l) { \
@@ -31,6 +32,11 @@
       l->append(", "); \
     LogParam(p.name, l); \
     needs_comma = true;
+#define IPC_STRUCT_TRAITS_PARENT(type) \
+    if (needs_comma) \
+      l->append(", "); \
+      ParamTraits<type>::Log(p, l); \
+      needs_comma = true;
 #define IPC_STRUCT_TRAITS_END() \
     l->append(")"); \
   }
diff --git a/ipc/param_traits_macros.h b/ipc/param_traits_macros.h
index f22376a5..df57adf 100644
--- a/ipc/param_traits_macros.h
+++ b/ipc/param_traits_macros.h
@@ -20,6 +20,7 @@
   }
 
 #define IPC_STRUCT_TRAITS_MEMBER(name)
+#define IPC_STRUCT_TRAITS_PARENT(type)
 #define IPC_STRUCT_TRAITS_END()
 
 // Traits generation for enums.
diff --git a/ipc/param_traits_read_macros.h b/ipc/param_traits_read_macros.h
index a4fc2f9..ffcdf8e 100644
--- a/ipc/param_traits_read_macros.h
+++ b/ipc/param_traits_read_macros.h
@@ -19,12 +19,14 @@
 // Set up so next include will generate read methods.
 #undef IPC_STRUCT_TRAITS_BEGIN
 #undef IPC_STRUCT_TRAITS_MEMBER
+#undef IPC_STRUCT_TRAITS_PARENT
 #undef IPC_STRUCT_TRAITS_END
 #define IPC_STRUCT_TRAITS_BEGIN(struct_name) \
   bool ParamTraits<struct_name>:: \
       Read(const Message* m, void** iter, param_type* p) { \
     return
 #define IPC_STRUCT_TRAITS_MEMBER(name) ReadParam(m, iter, &p->name) &&
+#define IPC_STRUCT_TRAITS_PARENT(type) ParamTraits<type>::Read(m, iter, p) &&
 #define IPC_STRUCT_TRAITS_END() 1; }
 
 #undef IPC_ENUM_TRAITS
diff --git a/ipc/param_traits_write_macros.h b/ipc/param_traits_write_macros.h
index 84e63f7..2ac5249 100644
--- a/ipc/param_traits_write_macros.h
+++ b/ipc/param_traits_write_macros.h
@@ -19,10 +19,12 @@
 // Set up so next include will generate write methods.
 #undef IPC_STRUCT_TRAITS_BEGIN
 #undef IPC_STRUCT_TRAITS_MEMBER
+#undef IPC_STRUCT_TRAITS_PARENT
 #undef IPC_STRUCT_TRAITS_END
 #define IPC_STRUCT_TRAITS_BEGIN(struct_name) \
   void ParamTraits<struct_name>::Write(Message* m, const param_type& p) {
 #define IPC_STRUCT_TRAITS_MEMBER(name) WriteParam(m, p.name);
+#define IPC_STRUCT_TRAITS_PARENT(type) ParamTraits<type>::Write(m, p);
 #define IPC_STRUCT_TRAITS_END() }
 
 #undef IPC_ENUM_TRAITS