Bug 1754037 - Part 2: Forward declare Message{Reader,Writer} where Message is forward declared, r=ipc-reviewers,mccr8

This will allow the types to be more easily automatically substituted in place
of `IPC::Message`, as the type will already be declared in places it is used.

Differential Revision: https://phabricator.services.mozilla.com/D140000

Author: mystor

docshell/base/BrowsingContext.h

@@ -43,6 +43,8 @@ class PickleIterator;
 
 namespace IPC {
 class Message;
+class MessageReader;
+class MessageWriter;
 }  // namespace IPC
 
 namespace mozilla {

docshell/base/SyncedContext.h

@@ -23,6 +23,8 @@ class PickleIterator;
 
 namespace IPC {
 class Message;
+class MessageReader;
+class MessageWriter;
 }  // namespace IPC
 
 namespace mozilla {

dom/base/nsContentUtils.h

@@ -128,7 +128,9 @@ class nsRefPtrHashKey;
 
 namespace IPC {
 class Message;
-}
+class MessageReader;
+class MessageWriter;
+}  // namespace IPC
 
 namespace JS {
 class Value;

dom/base/nsDOMNavigationTiming.h

@@ -23,6 +23,8 @@ using DOMHighResTimeStamp = double;
 class PickleIterator;
 namespace IPC {
 class Message;
+class MessageReader;
+class MessageWriter;
 }  // namespace IPC
 namespace mozilla {
 namespace ipc {

dom/bindings/ErrorResult.h

@@ -43,6 +43,8 @@
 
 namespace IPC {
 class Message;
+class MessageReader;
+class MessageWriter;
 template <typename>
 struct ParamTraits;
 }  // namespace IPC

dom/events/Event.h

@@ -33,6 +33,8 @@ class nsPresContext;
 
 namespace IPC {
 class Message;
+class MessageReader;
+class MessageWriter;
 }  // namespace IPC
 
 namespace mozilla {

dom/ipc/StructuredCloneData.h

@@ -15,7 +15,9 @@
 
 namespace IPC {
 class Message;
-}
+class MessageReader;
+class MessageWriter;
+}  // namespace IPC
 class PickleIterator;
 
 namespace mozilla {

dom/media/webrtc/transport/mediapacket.h

@@ -16,7 +16,9 @@ class PickleIterator;
 
 namespace IPC {
 class Message;
-}
+class MessageReader;
+class MessageWriter;
+}  // namespace IPC
 
 namespace mozilla {
 

dom/security/featurepolicy/FeaturePolicyUtils.h

@@ -16,7 +16,9 @@ class PickleIterator;
 
 namespace IPC {
 class Message;
-}
+class MessageReader;
+class MessageWriter;
+}  // namespace IPC
 
 namespace mozilla {
 namespace dom {

ipc/chromium/src/chrome/common/ipc_channel.h

@@ -23,6 +23,8 @@
 namespace IPC {
 
 class Message;
+class MessageReader;
+class MessageWriter;
 
 //------------------------------------------------------------------------------
 

ipc/chromium/src/chrome/common/ipc_message.h

@@ -38,6 +38,8 @@ const char* StringFromIPCMessageType(uint32_t aMessageType);
 
 class Channel;
 class Message;
+class MessageReader;
+class MessageWriter;
 #ifdef FUZZING
 class Faulty;
 #endif

ipc/chromium/src/mojo/core/ports/name.h

@@ -100,6 +100,8 @@ namespace IPC {
 template <typename T>
 struct ParamTraits;
 class Message;
+class MessageReader;
+class MessageWriter;
 
 template <>
 struct ParamTraits<mojo::core::ports::PortName> {

ipc/glue/EnumSerializer.h

@@ -20,7 +20,9 @@ class PickleIterator;
 
 namespace IPC {
 class Message;
-}
+class MessageReader;
+class MessageWriter;
+}  // namespace IPC
 
 #ifdef _MSC_VER
 #  pragma warning(disable : 4800)

ipc/glue/MessageLink.h

@@ -18,7 +18,9 @@
 
 namespace IPC {
 class Message;
-}
+class MessageReader;
+class MessageWriter;
+}  // namespace IPC
 
 namespace mozilla {
 namespace ipc {

ipc/glue/ProtocolMessageUtils.h

@@ -32,6 +32,8 @@ struct IPDLParamTraits;
 namespace IPC {
 
 class Message;
+class MessageReader;
+class MessageWriter;
 
 template <>
 struct ParamTraits<Channel::Mode>

netwerk/protocol/websocket/WebSocketFrame.h

@@ -20,6 +20,8 @@ using DOMHighResTimeStamp = double;
 
 namespace IPC {
 class Message;
+class MessageReader;
+class MessageWriter;
 template <class P>
 struct ParamTraits;
 }  // namespace IPC

tools/fuzzing/faulty/Faulty.h

@@ -30,6 +30,8 @@
 namespace IPC {
 // Needed for blacklisting messages.
 class Message;
+class MessageReader;
+class MessageWriter;
 }  // namespace IPC
 
 namespace mozilla {

xpcom/threads/nsThreadUtils.h

@@ -1745,7 +1745,9 @@ extern "C" nsresult NS_CreateBackgroundTaskQueue(
 // Predeclaration for logging function below
 namespace IPC {
 class Message;
-}
+class MessageReader;
+class MessageWriter;
+}  // namespace IPC
 
 class nsTimerImpl;