Generate serialization of ShareableResourceHandle

https://bugs.webkit.org/show_bug.cgi?id=261351

Reviewed by Alex Christensen.

Migrate `ShareableResourceHandle` to the serialization format. Remove
manual serialization.

* Source/WebKit/CMakeLists.txt:
* Source/WebKit/DerivedSources-input.xcfilelist:
* Source/WebKit/DerivedSources.make:
* Source/WebKit/Shared/ShareableResource.cpp:
(WebKit::ShareableResourceHandle::ShareableResourceHandle):
(WebKit::ShareableResource::createHandle):
(WebKit::ShareableResourceHandle::encode): Deleted.
(WebKit::ShareableResourceHandle::decode): Deleted.
* Source/WebKit/Shared/ShareableResource.h:
* Source/WebKit/Shared/ShareableResource.serialization.in: Added.

Canonical link: https://commits.webkit.org/267876@main

Source/WebKit/CMakeLists.txt

@@ -387,6 +387,7 @@ set(WebKit_SERIALIZATION_IN_FILES
     Shared/SameDocumentNavigationType.serialization.in
     Shared/SessionState.serialization.in
     Shared/ShareableBitmap.serialization.in
+    Shared/ShareableResource.serialization.in
     Shared/TextFlags.serialization.in
     Shared/TextRecognitionResult.serialization.in
     Shared/UpdateInfo.serialization.in

Source/WebKit/DerivedSources-input.xcfilelist

@@ -225,6 +225,7 @@ $(PROJECT_DIR)/Shared/RemoteWorkerType.serialization.in
 $(PROJECT_DIR)/Shared/SameDocumentNavigationType.serialization.in
 $(PROJECT_DIR)/Shared/SessionState.serialization.in
 $(PROJECT_DIR)/Shared/ShareableBitmap.serialization.in
+$(PROJECT_DIR)/Shared/ShareableResource.serialization.in
 $(PROJECT_DIR)/Shared/Shared/EditorState.serialization.in
 $(PROJECT_DIR)/Shared/TextFlags.serialization.in
 $(PROJECT_DIR)/Shared/TextRecognitionResult.serialization.in

Source/WebKit/DerivedSources.make

@@ -531,6 +531,7 @@ SERIALIZATION_DESCRIPTION_FILES = \
 	Shared/SameDocumentNavigationType.serialization.in \
 	Shared/SessionState.serialization.in \
 	Shared/ShareableBitmap.serialization.in \
+	Shared/ShareableResource.serialization.in \
 	Shared/TextFlags.serialization.in \
 	Shared/TextRecognitionResult.serialization.in \
 	Shared/UserInterfaceIdiom.serialization.in \

Source/WebKit/Shared/ShareableResource.cpp

@@ -37,29 +37,11 @@ using namespace WebCore;
 
 ShareableResourceHandle::ShareableResourceHandle() = default;
 
-void ShareableResourceHandle::encode(IPC::Encoder& encoder) &&
-{
-    encoder << WTFMove(m_handle);
-    encoder << m_offset;
-    encoder << m_size;
-}
-
-bool ShareableResourceHandle::decode(IPC::Decoder& decoder, ShareableResourceHandle& handle)
+ShareableResourceHandle::ShareableResourceHandle(SharedMemory::Handle&& handle, unsigned offset, unsigned size)
+    : m_handle(WTFMove(handle))
+    , m_offset(offset)
+    , m_size(size)
 {
-    SharedMemory::Handle memoryHandle;
-    if (UNLIKELY(!decoder.decode(memoryHandle)))
-        return false;
-    if (UNLIKELY(!decoder.decode(handle.m_offset)))
-        return false;
-    if (UNLIKELY(!decoder.decode(handle.m_size)))
-        return false;
-    auto neededSize = Checked<unsigned> { handle.m_offset } + handle.m_size;
-    if (UNLIKELY(neededSize.hasOverflowed()))
-        return false;
-    if (memoryHandle.size() < neededSize)
-        return false;
-    handle.m_handle = WTFMove(memoryHandle);
-    return true;
 }
 
 RefPtr<SharedBuffer> ShareableResource::wrapInSharedBuffer()
@@ -119,11 +101,7 @@ auto ShareableResource::createHandle() -> std::optional<Handle>
     if (!memoryHandle)
         return std::nullopt;
 
-    Handle handle;
-    handle.m_handle = WTFMove(*memoryHandle);
-    handle.m_offset = m_offset;
-    handle.m_size = m_size;
-    return { WTFMove(handle) };
+    return { Handle { WTFMove(*memoryHandle), m_offset, m_size } };
 }
 
 const uint8_t* ShareableResource::data() const

Source/WebKit/Shared/ShareableResource.h

@@ -42,17 +42,17 @@ class ShareableResourceHandle {
 public:
     ShareableResourceHandle();
     ShareableResourceHandle(ShareableResourceHandle&&) = default;
+    ShareableResourceHandle(SharedMemory::Handle&&, unsigned, unsigned);
+
     ShareableResourceHandle& operator=(ShareableResourceHandle&&) = default;
 
     bool isNull() const { return m_handle.isNull(); }
     unsigned size() const { return m_size; }
 
-    void encode(IPC::Encoder&) &&;
-    static WARN_UNUSED_RETURN bool decode(IPC::Decoder&, ShareableResourceHandle&);
-
     RefPtr<WebCore::SharedBuffer> tryWrapInSharedBuffer() &&;
 
 private:
+    friend struct IPC::ArgumentCoder<ShareableResourceHandle, void>;
     friend class ShareableResource;
 
     SharedMemory::Handle m_handle;

Source/WebKit/Shared/ShareableResource.serialization.in

@@ -0,0 +1,29 @@
+# Copyright (C) 2023 Sony Interactive Entertainment Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1.  Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+# 2.  Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR
+# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+header: "ShareableResource.h"
+
+[CustomHeader, RValue] class WebKit::ShareableResourceHandle {
+    WebKit::SharedMemoryHandle m_handle;
+    unsigned m_offset;
+    [Validator='!(Checked<unsigned> { *m_offset } + *m_size).hasOverflowed() && (*m_offset + *m_size <= m_handle->size())'] unsigned m_size;
+}