[Oilpan] Migrate classes under module/webgl onto oilpan heap

Source/modules/webgl/WebGLRenderingContextBase.cpp

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * 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
@@ skipping 204 matching lines @@
         if (!desiredSize.isEmpty()) {
             forciblyEvictedContexts().remove(0);
             evictedContext->forceRestoreContext();
         }
         break;
     }
 }
 
 namespace {
 
-    // ScopedDrawingBufferBinder is used for ReadPixels/CopyTexImage2D/CopySubImage2D to read from
-    // a multisampled DrawingBuffer. In this situation, we need to blit to a single sampled buffer
-    // for reading, during which the bindings could be changed and need to be recovered.
-    class ScopedDrawingBufferBinder {
-        STACK_ALLOCATED();
-    public:
-        ScopedDrawingBufferBinder(DrawingBuffer* drawingBuffer, WebGLFramebuffer* framebufferBinding)
-            : m_drawingBuffer(drawingBuffer)
-            , m_readFramebufferBinding(framebufferBinding)
-        {
-            // Commit DrawingBuffer if needed (e.g., for multisampling)
-            if (!m_readFramebufferBinding && m_drawingBuffer)
-                m_drawingBuffer->commit();
-        }
-
-        ~ScopedDrawingBufferBinder()
-        {
-            // Restore DrawingBuffer if needed
-            if (!m_readFramebufferBinding && m_drawingBuffer)
-                m_drawingBuffer->restoreFramebufferBindings();
-        }
-
-    private:
-        DrawingBuffer* m_drawingBuffer;
-        RawPtrWillBeMember<WebGLFramebuffer> m_readFramebufferBinding;
+// ScopedDrawingBufferBinder is used for ReadPixels/CopyTexImage2D/CopySubImage2D to read from
+// a multisampled DrawingBuffer. In this situation, we need to blit to a single sampled buffer
+// for reading, during which the bindings could be changed and need to be recovered.
+class ScopedDrawingBufferBinder {
+    STACK_ALLOCATED();
+public:
+    ScopedDrawingBufferBinder(DrawingBuffer* drawingBuffer, WebGLFramebuffer* framebufferBinding)
+        : m_drawingBuffer(drawingBuffer)
+        , m_readFramebufferBinding(framebufferBinding)
+    {
+        // Commit DrawingBuffer if needed (e.g., for multisampling)
+        if (!m_readFramebufferBinding && m_drawingBuffer)
+            m_drawingBuffer->commit();
+    }
+
+    ~ScopedDrawingBufferBinder()
+    {
+        // Restore DrawingBuffer if needed
+        if (!m_readFramebufferBinding && m_drawingBuffer)
+            m_drawingBuffer->restoreFramebufferBindings();
+    }
+
+private:
+    DrawingBuffer* m_drawingBuffer;
+    Member<WebGLFramebuffer> m_readFramebufferBinding;
+};
+
+GLint clamp(GLint value, GLint min, GLint max)
+{
+    if (value < min)
+        value = min;
+    if (value > max)
+        value = max;
+    return value;
+}
+
+// Return true if a character belongs to the ASCII subset as defined in
+// GLSL ES 1.0 spec section 3.1.
+bool validateCharacter(unsigned char c)
+{
+    // Printing characters are valid except " $ ` @ \ ' DEL.
+    if (c >= 32 && c <= 126
+        && c != '"' && c != '$' && c != '`' && c != '@' && c != '\\' && c != '\'')
+        return true;
+    // Horizontal tab, line feed, vertical tab, form feed, carriage return
+    // are also valid.
+    if (c >= 9 && c <= 13)
+        return true;
+    return false;
+}
+
+bool isPrefixReserved(const String& name)
+{
+    if (name.startsWith("gl_") || name.startsWith("webgl_") || name.startsWith("_webgl_"))
+        return true;
+    return false;
+}
+
+// Strips comments from shader text. This allows non-ASCII characters
+// to be used in comments without potentially breaking OpenGL
+// implementations not expecting characters outside the GLSL ES set.
+class StripComments {
+public:
+    StripComments(const String& str)
+        : m_parseState(BeginningOfLine)
+        , m_sourceString(str)
+        , m_length(str.length())
+        , m_position(0)
+    {
+        parse();
+    }
+
+    String result()
+    {
+        return m_builder.toString();
+    }
+
+private:
+    bool hasMoreCharacters() const
+    {
+        return (m_position < m_length);
+    }
+
+    void parse()
+    {
+        while (hasMoreCharacters()) {
+            process(current());
+            // process() might advance the position.
+            if (hasMoreCharacters())
+                advance();
+        }
+    }
+
+    void process(UChar);
+
+    bool peek(UChar& character) const
+    {
+        if (m_position + 1 >= m_length)
+            return false;
+        character = m_sourceString[m_position + 1];
+        return true;
+    }
+
+    UChar current()
+    {
+        ASSERT_WITH_SECURITY_IMPLICATION(m_position < m_length);
+        return m_sourceString[m_position];
+    }
+
+    void advance()
+    {
+        ++m_position;
+    }
+
+    static bool isNewline(UChar character)
+    {
+        // Don't attempt to canonicalize newline related characters.
+        return (character == '\n' || character == '\r');
+    }
+
+    void emit(UChar character)
+    {
+        m_builder.append(character);
+    }
+
+    enum ParseState {
+        // Have not seen an ASCII non-whitespace character yet on
+        // this line. Possible that we might see a preprocessor
+        // directive.
+        BeginningOfLine,
+
+        // Have seen at least one ASCII non-whitespace character
+        // on this line.
+        MiddleOfLine,
+
+        // Handling a preprocessor directive. Passes through all
+        // characters up to the end of the line. Disables comment
+        // processing.
+        InPreprocessorDirective,
+
+        // Handling a single-line comment. The comment text is
+        // replaced with a single space.
+        InSingleLineComment,
+
+        // Handling a multi-line comment. Newlines are passed
+        // through to preserve line numbers.
+        InMultiLineComment
     };
 
-    GLint clamp(GLint value, GLint min, GLint max)
-    {
-        if (value < min)
-            value = min;
-        if (value > max)
-            value = max;
-        return value;
-    }
-
-    // Return true if a character belongs to the ASCII subset as defined in
-    // GLSL ES 1.0 spec section 3.1.
-    bool validateCharacter(unsigned char c)
-    {
-        // Printing characters are valid except " $ ` @ \ ' DEL.
-        if (c >= 32 && c <= 126
-            && c != '"' && c != '$' && c != '`' && c != '@' && c != '\\' && c != '\'')
-            return true;
-        // Horizontal tab, line feed, vertical tab, form feed, carriage return
-        // are also valid.
-        if (c >= 9 && c <= 13)
-            return true;
-        return false;
-    }
-
-    bool isPrefixReserved(const String& name)
-    {
-        if (name.startsWith("gl_") || name.startsWith("webgl_") || name.startsWith("_webgl_"))
-            return true;
-        return false;
-    }
-
-    // Strips comments from shader text. This allows non-ASCII characters
-    // to be used in comments without potentially breaking OpenGL
-    // implementations not expecting characters outside the GLSL ES set.
-    class StripComments {
-    public:
-        StripComments(const String& str)
-            : m_parseState(BeginningOfLine)
-            , m_sourceString(str)
-            , m_length(str.length())
-            , m_position(0)
-        {
-            parse();
-        }
-
-        String result()
-        {
-            return m_builder.toString();
-        }
-
-    private:
-        bool hasMoreCharacters() const
-        {
-            return (m_position < m_length);
-        }
-
-        void parse()
-        {
-            while (hasMoreCharacters()) {
-                process(current());
-                // process() might advance the position.
-                if (hasMoreCharacters())
-                    advance();
-            }
-        }
-
-        void process(UChar);
-
-        bool peek(UChar& character) const
-        {
-            if (m_position + 1 >= m_length)
-                return false;
-            character = m_sourceString[m_position + 1];
-            return true;
-        }
-
-        UChar current()
-        {
-            ASSERT_WITH_SECURITY_IMPLICATION(m_position < m_length);
-            return m_sourceString[m_position];
-        }
-
-        void advance()
-        {
-            ++m_position;
-        }
-
-        static bool isNewline(UChar character)
-        {
-            // Don't attempt to canonicalize newline related characters.
-            return (character == '\n' || character == '\r');
-        }
-
-        void emit(UChar character)
-        {
-            m_builder.append(character);
-        }
-
-        enum ParseState {
-            // Have not seen an ASCII non-whitespace character yet on
-            // this line. Possible that we might see a preprocessor
-            // directive.
-            BeginningOfLine,
-
-            // Have seen at least one ASCII non-whitespace character
-            // on this line.
-            MiddleOfLine,
-
-            // Handling a preprocessor directive. Passes through all
-            // characters up to the end of the line. Disables comment
-            // processing.
-            InPreprocessorDirective,
-
-            // Handling a single-line comment. The comment text is
-            // replaced with a single space.
-            InSingleLineComment,
-
-            // Handling a multi-line comment. Newlines are passed
-            // through to preserve line numbers.
-            InMultiLineComment
-        };
-
-        ParseState m_parseState;
-        String m_sourceString;
-        unsigned m_length;
-        unsigned m_position;
-        StringBuilder m_builder;
-    };
-
-    void StripComments::process(UChar c)
-    {
-        if (isNewline(c)) {
-            // No matter what state we are in, pass through newlines
-            // so we preserve line numbers.
-            emit(c);
-
-            if (m_parseState != InMultiLineComment)
-                m_parseState = BeginningOfLine;
-
-            return;
-        }
-
-        UChar temp = 0;
-        switch (m_parseState) {
-        case BeginningOfLine:
-            if (WTF::isASCIISpace(c)) {
-                emit(c);
-                break;
-            }
-
-            if (c == '#') {
-                m_parseState = InPreprocessorDirective;
-                emit(c);
-                break;
-            }
-
-            // Transition to normal state and re-handle character.
-            m_parseState = MiddleOfLine;
-            process(c);
-            break;
-
-        case MiddleOfLine:
-            if (c == '/' && peek(temp)) {
-                if (temp == '/') {
-                    m_parseState = InSingleLineComment;
-                    emit(' ');
-                    advance();
-                    break;
-                }
-
-                if (temp == '*') {
-                    m_parseState = InMultiLineComment;
-                    // Emit the comment start in case the user has
-                    // an unclosed comment and we want to later
-                    // signal an error.
-                    emit('/');
-                    emit('*');
-                    advance();
-                    break;
-                }
-            }
-
+    ParseState m_parseState;
+    String m_sourceString;
+    unsigned m_length;
+    unsigned m_position;
+    StringBuilder m_builder;
+};
+
+void StripComments::process(UChar c)
+{
+    if (isNewline(c)) {
+        // No matter what state we are in, pass through newlines
+        // so we preserve line numbers.
+        emit(c);
+
+        if (m_parseState != InMultiLineComment)
+            m_parseState = BeginningOfLine;
+
+        return;
+    }
+
+    UChar temp = 0;
+    switch (m_parseState) {
+    case BeginningOfLine:
+        if (WTF::isASCIISpace(c)) {
             emit(c);
             break;
-
-        case InPreprocessorDirective:
-            // No matter what the character is, just pass it
-            // through. Do not parse comments in this state. This
-            // might not be the right thing to do long term, but it
-            // should handle the #error preprocessor directive.
+        }
+
+        if (c == '#') {
+            m_parseState = InPreprocessorDirective;
             emit(c);
             break;
-
-        case InSingleLineComment:
-            // The newline code at the top of this function takes care
-            // of resetting our state when we get out of the
-            // single-line comment. Swallow all other characters.
-            break;
-
-        case InMultiLineComment:
-            if (c == '*' && peek(temp) && temp == '/') {
-                emit('*');
-                emit('/');
-                m_parseState = MiddleOfLine;
+        }
+
+        // Transition to normal state and re-handle character.
+        m_parseState = MiddleOfLine;
+        process(c);
+        break;
+
+    case MiddleOfLine:
+        if (c == '/' && peek(temp)) {
+            if (temp == '/') {
+                m_parseState = InSingleLineComment;
+                emit(' ');
                 advance();
                 break;
             }
 
-            // Swallow all other characters. Unclear whether we may
-            // want or need to just emit a space per character to try
-            // to preserve column numbers for debugging purposes.
+            if (temp == '*') {
+                m_parseState = InMultiLineComment;
+                // Emit the comment start in case the user has
+                // an unclosed comment and we want to later
+                // signal an error.
+                emit('/');
+                emit('*');
+                advance();
+                break;
+            }
+        }
+
+        emit(c);
+        break;
+
+    case InPreprocessorDirective:
+        // No matter what the character is, just pass it
+        // through. Do not parse comments in this state. This
+        // might not be the right thing to do long term, but it
+        // should handle the #error preprocessor directive.
+        emit(c);
+        break;
+
+    case InSingleLineComment:
+        // The newline code at the top of this function takes care
+        // of resetting our state when we get out of the
+        // single-line comment. Swallow all other characters.
+        break;
+
+    case InMultiLineComment:
+        if (c == '*' && peek(temp) && temp == '/') {
+            emit('*');
+            emit('/');
+            m_parseState = MiddleOfLine;
+            advance();
             break;
         }
-    }
-
-    static bool shouldFailContextCreationForTesting = false;
+
+        // Swallow all other characters. Unclear whether we may
+        // want or need to just emit a space per character to try
+        // to preserve column numbers for debugging purposes.
+        break;
+    }
+}
+
+static bool shouldFailContextCreationForTesting = false;
 } // namespace anonymous
 
 class ScopedTexture2DRestorer {
     STACK_ALLOCATED();
 public:
     explicit ScopedTexture2DRestorer(WebGLRenderingContextBase* context)
         : m_context(context)
     {
     }
 
@@ skipping 16 matching lines @@
 
     ~ScopedFramebufferRestorer()
     {
         m_context->restoreCurrentFramebuffer();
     }
 
 private:
     RawPtrWillBeMember<WebGLRenderingContextBase> m_context;
 };
 
-class WebGLRenderingContextLostCallback final : public NoBaseWillBeGarbageCollectedFinalized<WebGLRenderingContextLostCallback>, public WebGraphicsContext3D::WebGraphicsContextLostCallback {
-    WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(WebGLRenderingContextLostCallback);
+class WebGLRenderingContextLostCallback final : public GarbageCollectedFinalized<WebGLRenderingContextLostCallback>, public WebGraphicsContext3D::WebGraphicsContextLostCallback {
 public:
-    static PassOwnPtrWillBeRawPtr<WebGLRenderingContextLostCallback> create(WebGLRenderingContextBase* context)
+    static WebGLRenderingContextLostCallback* create(WebGLRenderingContextBase* context)
     {
-        return adoptPtrWillBeNoop(new WebGLRenderingContextLostCallback(context));
+        return new WebGLRenderingContextLostCallback(context);
     }
 
     ~WebGLRenderingContextLostCallback() override { }
 
     virtual void onContextLost() { m_context->forceLostContext(WebGLRenderingContextBase::RealLostContext, WebGLRenderingContextBase::Auto); }
 
     DEFINE_INLINE_TRACE()
     {
         visitor->trace(m_context);
     }
 
 private:
     explicit WebGLRenderingContextLostCallback(WebGLRenderingContextBase* context)
         : m_context(context) { }
 
     RawPtrWillBeMember<WebGLRenderingContextBase> m_context;
 };
 
-class WebGLRenderingContextErrorMessageCallback final : public NoBaseWillBeGarbageCollectedFinalized<WebGLRenderingContextErrorMessageCallback>, public WebGraphicsContext3D::WebGraphicsErrorMessageCallback {
-    WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(WebGLRenderingContextErrorMessageCallback);
+class WebGLRenderingContextErrorMessageCallback final : public GarbageCollectedFinalized<WebGLRenderingContextErrorMessageCallback>, public WebGraphicsContext3D::WebGraphicsErrorMessageCallback {
 public:
-    static PassOwnPtrWillBeRawPtr<WebGLRenderingContextErrorMessageCallback> create(WebGLRenderingContextBase* context)
+    static WebGLRenderingContextErrorMessageCallback* create(WebGLRenderingContextBase* context)
     {
-        return adoptPtrWillBeNoop(new WebGLRenderingContextErrorMessageCallback(context));
+        return new WebGLRenderingContextErrorMessageCallback(context);
     }
 
     ~WebGLRenderingContextErrorMessageCallback() override { }
 
     virtual void onErrorMessage(const WebString& message, WGC3Dint)
     {
         if (m_context->m_synthesizedErrorsToConsole)
             m_context->printGLErrorToConsole(message);
         InspectorInstrumentation::didFireWebGLErrorOrWarning(m_context->canvas(), message);
     }
@@ skipping 1367 matching lines @@
         return;
     }
     WebGLFramebuffer* readFramebufferBinding = nullptr;
     if (!validateReadBufferAndGetInfo("copyTexSubImage2D", readFramebufferBinding, nullptr, nullptr))
         return;
     clearIfComposited();
     ScopedDrawingBufferBinder binder(drawingBuffer(), readFramebufferBinding);
     webContext()->copyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height);
 }
 
-PassRefPtrWillBeRawPtr<WebGLBuffer> WebGLRenderingContextBase::createBuffer()
+WebGLBuffer* WebGLRenderingContextBase::createBuffer()
 {
     if (isContextLost())
         return nullptr;
-    RefPtrWillBeRawPtr<WebGLBuffer> o = WebGLBuffer::create(this);
-    addSharedObject(o.get());
-    return o.release();
+    WebGLBuffer* o = WebGLBuffer::create(this);
+    addSharedObject(o);
+    return o;
 }
 
-PassRefPtrWillBeRawPtr<WebGLFramebuffer> WebGLRenderingContextBase::createFramebuffer()
+WebGLFramebuffer* WebGLRenderingContextBase::createFramebuffer()
 {
     if (isContextLost())
         return nullptr;
-    RefPtrWillBeRawPtr<WebGLFramebuffer> o = WebGLFramebuffer::create(this);
-    addContextObject(o.get());
-    return o.release();
+    WebGLFramebuffer* o = WebGLFramebuffer::create(this);
+    addContextObject(o);
+    return o;
 }
 
-PassRefPtrWillBeRawPtr<WebGLTexture> WebGLRenderingContextBase::createTexture()
+WebGLTexture* WebGLRenderingContextBase::createTexture()
 {
     if (isContextLost())
         return nullptr;
-    RefPtrWillBeRawPtr<WebGLTexture> o = WebGLTexture::create(this);
-    addSharedObject(o.get());
-    return o.release();
+    WebGLTexture* o = WebGLTexture::create(this);
+    addSharedObject(o);
+    return o;
 }
 
-PassRefPtrWillBeRawPtr<WebGLProgram> WebGLRenderingContextBase::createProgram()
+WebGLProgram* WebGLRenderingContextBase::createProgram()
 {
     if (isContextLost())
         return nullptr;
-    RefPtrWillBeRawPtr<WebGLProgram> o = WebGLProgram::create(this);
-    addSharedObject(o.get());
-    return o.release();
+    WebGLProgram* o = WebGLProgram::create(this);
+    addSharedObject(o);
+    return o;
 }
 
-PassRefPtrWillBeRawPtr<WebGLRenderbuffer> WebGLRenderingContextBase::createRenderbuffer()
+WebGLRenderbuffer* WebGLRenderingContextBase::createRenderbuffer()
 {
     if (isContextLost())
         return nullptr;
-    RefPtrWillBeRawPtr<WebGLRenderbuffer> o = WebGLRenderbuffer::create(this);
-    addSharedObject(o.get());
-    return o.release();
+    WebGLRenderbuffer* o = WebGLRenderbuffer::create(this);
+    addSharedObject(o);
+    return o;
 }
 
 WebGLRenderbuffer* WebGLRenderingContextBase::ensureEmulatedStencilBuffer(GLenum target, WebGLRenderbuffer* renderbuffer)
 {
     if (isContextLost())
         return nullptr;
     if (!renderbuffer->emulatedStencilBuffer()) {
         renderbuffer->setEmulatedStencilBuffer(createRenderbuffer());
         webContext()->bindRenderbuffer(target, objectOrZero(renderbuffer->emulatedStencilBuffer()));
         webContext()->bindRenderbuffer(target, objectOrZero(m_renderbufferBinding.get()));
     }
     return renderbuffer->emulatedStencilBuffer();
 }
 
-PassRefPtrWillBeRawPtr<WebGLShader> WebGLRenderingContextBase::createShader(GLenum type)
+WebGLShader* WebGLRenderingContextBase::createShader(GLenum type)
 {
     if (isContextLost())
         return nullptr;
     if (type != GL_VERTEX_SHADER && type != GL_FRAGMENT_SHADER) {
         synthesizeGLError(GL_INVALID_ENUM, "createShader", "invalid shader type");
         return nullptr;
     }
 
-    RefPtrWillBeRawPtr<WebGLShader> o = WebGLShader::create(this, type);
-    addSharedObject(o.get());
-    return o.release();
+    WebGLShader* o = WebGLShader::create(this, type);
+    addSharedObject(o);
+    return o;
 }
 
 void WebGLRenderingContextBase::cullFace(GLenum mode)
 {
     if (isContextLost())
         return;
     switch (mode) {
     case GL_FRONT_AND_BACK:
     case GL_FRONT:
     case GL_BACK:
@@ skipping 435 matching lines @@
     }
 #endif
     webContext()->generateMipmap(target);
 #if OS(MACOSX)
     if (needToResetMinFilter)
         webContext()->texParameteri(target, GL_TEXTURE_MIN_FILTER, tex->getMinFilter());
 #endif
     tex->generateMipmapLevelInfo();
 }
 
-PassRefPtrWillBeRawPtr<WebGLActiveInfo> WebGLRenderingContextBase::getActiveAttrib(WebGLProgram* program, GLuint index)
+WebGLActiveInfo* WebGLRenderingContextBase::getActiveAttrib(WebGLProgram* program, GLuint index)
 {
     if (isContextLost() || !validateWebGLObject("getActiveAttrib", program))
         return nullptr;
     WebGraphicsContext3D::ActiveInfo info;
     if (!webContext()->getActiveAttrib(objectOrZero(program), index, info))
         return nullptr;
     return WebGLActiveInfo::create(info.name, info.type, info.size);
 }
 
-PassRefPtrWillBeRawPtr<WebGLActiveInfo> WebGLRenderingContextBase::getActiveUniform(WebGLProgram* program, GLuint index)
+WebGLActiveInfo* WebGLRenderingContextBase::getActiveUniform(WebGLProgram* program, GLuint index)
 {
     if (isContextLost() || !validateWebGLObject("getActiveUniform", program))
         return nullptr;
     WebGraphicsContext3D::ActiveInfo info;
     if (!webContext()->getActiveUniform(objectOrZero(program), index, info))
         return nullptr;
     return WebGLActiveInfo::create(info.name, info.type, info.size);
 }
 
-Nullable<WillBeHeapVector<RefPtrWillBeMember<WebGLShader>>> WebGLRenderingContextBase::getAttachedShaders(WebGLProgram* program)
+Nullable<HeapVector<Member<WebGLShader>>> WebGLRenderingContextBase::getAttachedShaders(WebGLProgram* program)
 {
     if (isContextLost() || !validateWebGLObject("getAttachedShaders", program))
         return nullptr;
 
-    WillBeHeapVector<RefPtrWillBeMember<WebGLShader>> shaderObjects;
+    HeapVector<Member<WebGLShader>> shaderObjects;
     const GLenum shaderType[] = {
         GL_VERTEX_SHADER,
         GL_FRAGMENT_SHADER
     };
     for (unsigned i = 0; i < sizeof(shaderType) / sizeof(GLenum); ++i) {
         WebGLShader* shader = program->getAttachedShader(shaderType[i]);
         if (shader)
             shaderObjects.append(shader);
     }
     return shaderObjects;
@@ skipping 105 matching lines @@
 {
     if (tracker->draft() && !RuntimeEnabledFeatures::webGLDraftExtensionsEnabled())
         return false;
     if (!tracker->supported(this))
         return false;
     return true;
 }
 
 ScriptValue WebGLRenderingContextBase::getExtension(ScriptState* scriptState, const String& name)
 {
-    RefPtrWillBeRawPtr<WebGLExtension> extension = nullptr;
+    WebGLExtension* extension = nullptr;
 
     if (!isContextLost()) {
         for (size_t i = 0; i < m_extensions.size(); ++i) {
             ExtensionTracker* tracker = m_extensions[i].get();
             if (tracker->matchesNameWithPrefixes(name)) {
                 if (extensionSupportedAndAllowed(tracker)) {
                     extension = tracker->getExtension(this);
                     if (extension)
                         m_extensionEnabled[extension->name()] = true;
                 }
@@ skipping 24 matching lines @@
         synthesizeGLError(GL_INVALID_ENUM, "getFramebufferAttachmentParameter", "invalid parameter name");
         return ScriptValue::createNull(scriptState);
     }
 
     ASSERT(attachmentObject->isTexture() || attachmentObject->isRenderbuffer());
     if (attachmentObject->isTexture()) {
         switch (pname) {
         case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE:
             return WebGLAny(scriptState, GL_TEXTURE);
         case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:
-            return WebGLAny(scriptState, PassRefPtrWillBeRawPtr<WebGLObject>(attachmentObject));
+            return WebGLAny(scriptState, attachmentObject);
         case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL:
         case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE:
             {
                 GLint value = 0;
                 webContext()->getFramebufferAttachmentParameteriv(target, attachment, pname, &value);
                 return WebGLAny(scriptState, value);
             }
         case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT:
             if (extensionEnabled(EXTsRGBName)) {
                 GLint value = 0;
                 webContext()->getFramebufferAttachmentParameteriv(target, attachment, pname, &value);
                 return WebGLAny(scriptState, static_cast<unsigned>(value));
             }
             synthesizeGLError(GL_INVALID_ENUM, "getFramebufferAttachmentParameter", "invalid parameter name for renderbuffer attachment");
             return ScriptValue::createNull(scriptState);
         default:
             synthesizeGLError(GL_INVALID_ENUM, "getFramebufferAttachmentParameter", "invalid parameter name for texture attachment");
             return ScriptValue::createNull(scriptState);
         }
     } else {
         switch (pname) {
         case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE:
             return WebGLAny(scriptState, GL_RENDERBUFFER);
         case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:
-            return WebGLAny(scriptState, PassRefPtrWillBeRawPtr<WebGLObject>(attachmentObject));
+            return WebGLAny(scriptState, attachmentObject);
         case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT:
             if (extensionEnabled(EXTsRGBName) || isWebGL2OrHigher()) {
                 GLint value = 0;
                 webContext()->getFramebufferAttachmentParameteriv(target, attachment, pname, &value);
                 return WebGLAny(scriptState, value);
             }
             synthesizeGLError(GL_INVALID_ENUM, "getFramebufferAttachmentParameter", "invalid parameter name for renderbuffer attachment");
             return ScriptValue::createNull(scriptState);
         default:
             synthesizeGLError(GL_INVALID_ENUM, "getFramebufferAttachmentParameter", "invalid parameter name for renderbuffer attachment");
@@ skipping 10 matching lines @@
     switch (pname) {
     case GL_ACTIVE_TEXTURE:
         return getUnsignedIntParameter(scriptState, pname);
     case GL_ALIASED_LINE_WIDTH_RANGE:
         return getWebGLFloatArrayParameter(scriptState, pname);
     case GL_ALIASED_POINT_SIZE_RANGE:
         return getWebGLFloatArrayParameter(scriptState, pname);
     case GL_ALPHA_BITS:
         return getIntParameter(scriptState, pname);
     case GL_ARRAY_BUFFER_BINDING:
-        return WebGLAny(scriptState, PassRefPtrWillBeRawPtr<WebGLObject>(m_boundArrayBuffer.get()));
+        return WebGLAny(scriptState, m_boundArrayBuffer.get());
     case GL_BLEND:
         return getBooleanParameter(scriptState, pname);
     case GL_BLEND_COLOR:
         return getWebGLFloatArrayParameter(scriptState, pname);
     case GL_BLEND_DST_ALPHA:
         return getUnsignedIntParameter(scriptState, pname);
     case GL_BLEND_DST_RGB:
         return getUnsignedIntParameter(scriptState, pname);
     case GL_BLEND_EQUATION_ALPHA:
         return getUnsignedIntParameter(scriptState, pname);
     case GL_BLEND_EQUATION_RGB:
         return getUnsignedIntParameter(scriptState, pname);
     case GL_BLEND_SRC_ALPHA:
         return getUnsignedIntParameter(scriptState, pname);
     case GL_BLEND_SRC_RGB:
         return getUnsignedIntParameter(scriptState, pname);
     case GL_BLUE_BITS:
         return getIntParameter(scriptState, pname);
     case GL_COLOR_CLEAR_VALUE:
         return getWebGLFloatArrayParameter(scriptState, pname);
     case GL_COLOR_WRITEMASK:
         return getBooleanArrayParameter(scriptState, pname);
     case GL_COMPRESSED_TEXTURE_FORMATS:
         return WebGLAny(scriptState, DOMUint32Array::create(m_compressedTextureFormats.data(), m_compressedTextureFormats.size()));
     case GL_CULL_FACE:
         return getBooleanParameter(scriptState, pname);
     case GL_CULL_FACE_MODE:
         return getUnsignedIntParameter(scriptState, pname);
     case GL_CURRENT_PROGRAM:
-        return WebGLAny(scriptState, PassRefPtrWillBeRawPtr<WebGLObject>(m_currentProgram.get()));
+        return WebGLAny(scriptState, m_currentProgram.get());
     case GL_DEPTH_BITS:
         if (!m_framebufferBinding && !m_requestedAttributes.depth())
             return WebGLAny(scriptState, intZero);
         return getIntParameter(scriptState, pname);
     case GL_DEPTH_CLEAR_VALUE:
         return getFloatParameter(scriptState, pname);
     case GL_DEPTH_FUNC:
         return getUnsignedIntParameter(scriptState, pname);
     case GL_DEPTH_RANGE:
         return getWebGLFloatArrayParameter(scriptState, pname);
     case GL_DEPTH_TEST:
         return getBooleanParameter(scriptState, pname);
     case GL_DEPTH_WRITEMASK:
         return getBooleanParameter(scriptState, pname);
     case GL_DITHER:
         return getBooleanParameter(scriptState, pname);
     case GL_ELEMENT_ARRAY_BUFFER_BINDING:
-        return WebGLAny(scriptState, PassRefPtrWillBeRawPtr<WebGLObject>(m_boundVertexArrayObject->boundElementArrayBuffer()));
+        return WebGLAny(scriptState, m_boundVertexArrayObject->boundElementArrayBuffer());
     case GL_FRAMEBUFFER_BINDING:
-        return WebGLAny(scriptState, PassRefPtrWillBeRawPtr<WebGLObject>(m_framebufferBinding.get()));
+        return WebGLAny(scriptState, m_framebufferBinding.get());
     case GL_FRONT_FACE:
         return getUnsignedIntParameter(scriptState, pname);
     case GL_GENERATE_MIPMAP_HINT:
         return getUnsignedIntParameter(scriptState, pname);
     case GL_GREEN_BITS:
         return getIntParameter(scriptState, pname);
     case GL_IMPLEMENTATION_COLOR_READ_FORMAT:
         return getIntParameter(scriptState, pname);
     case GL_IMPLEMENTATION_COLOR_READ_TYPE:
         return getIntParameter(scriptState, pname);
@@ skipping 28 matching lines @@
         return getIntParameter(scriptState, pname);
     case GL_POLYGON_OFFSET_FACTOR:
         return getFloatParameter(scriptState, pname);
     case GL_POLYGON_OFFSET_FILL:
         return getBooleanParameter(scriptState, pname);
     case GL_POLYGON_OFFSET_UNITS:
         return getFloatParameter(scriptState, pname);
     case GL_RED_BITS:
         return getIntParameter(scriptState, pname);
     case GL_RENDERBUFFER_BINDING:
-        return WebGLAny(scriptState, PassRefPtrWillBeRawPtr<WebGLObject>(m_renderbufferBinding.get()));
+        return WebGLAny(scriptState, m_renderbufferBinding.get());
     case GL_RENDERER:
         return WebGLAny(scriptState, String("WebKit WebGL"));
     case GL_SAMPLE_BUFFERS:
         return getIntParameter(scriptState, pname);
     case GL_SAMPLE_COVERAGE_INVERT:
         return getBooleanParameter(scriptState, pname);
     case GL_SAMPLE_COVERAGE_VALUE:
         return getFloatParameter(scriptState, pname);
     case GL_SAMPLES:
         return getIntParameter(scriptState, pname);
@@ skipping 35 matching lines @@
         return getIntParameter(scriptState, pname);
     case GL_STENCIL_TEST:
         return getBooleanParameter(scriptState, pname);
     case GL_STENCIL_VALUE_MASK:
         return getUnsignedIntParameter(scriptState, pname);
     case GL_STENCIL_WRITEMASK:
         return getUnsignedIntParameter(scriptState, pname);
     case GL_SUBPIXEL_BITS:
         return getIntParameter(scriptState, pname);
     case GL_TEXTURE_BINDING_2D:
-        return WebGLAny(scriptState, PassRefPtrWillBeRawPtr<WebGLObject>(m_textureUnits[m_activeTextureUnit].m_texture2DBinding.get()));
+        return WebGLAny(scriptState, m_textureUnits[m_activeTextureUnit].m_texture2DBinding.get());
     case GL_TEXTURE_BINDING_CUBE_MAP:
-        return WebGLAny(scriptState, PassRefPtrWillBeRawPtr<WebGLObject>(m_textureUnits[m_activeTextureUnit].m_textureCubeMapBinding.get()));
+        return WebGLAny(scriptState, m_textureUnits[m_activeTextureUnit].m_textureCubeMapBinding.get());
     case GL_UNPACK_ALIGNMENT:
         return getIntParameter(scriptState, pname);
     case GC3D_UNPACK_FLIP_Y_WEBGL:
         return WebGLAny(scriptState, m_unpackFlipY);
     case GC3D_UNPACK_PREMULTIPLY_ALPHA_WEBGL:
         return WebGLAny(scriptState, m_unpackPremultiplyAlpha);
     case GC3D_UNPACK_COLORSPACE_CONVERSION_WEBGL:
         return WebGLAny(scriptState, m_unpackColorspaceConversion);
     case GL_VENDOR:
         return WebGLAny(scriptState, String("WebKit"));
@@ skipping 12 matching lines @@
         synthesizeGLError(GL_INVALID_ENUM, "getParameter", "invalid parameter name, WEBGL_debug_renderer_info not enabled");
         return ScriptValue::createNull(scriptState);
     case WebGLDebugRendererInfo::UNMASKED_VENDOR_WEBGL:
         if (extensionEnabled(WebGLDebugRendererInfoName))
             return WebGLAny(scriptState, webContext()->getString(GL_VENDOR));
         synthesizeGLError(GL_INVALID_ENUM, "getParameter", "invalid parameter name, WEBGL_debug_renderer_info not enabled");
         return ScriptValue::createNull(scriptState);
     case GL_VERTEX_ARRAY_BINDING_OES: // OES_vertex_array_object
         if (extensionEnabled(OESVertexArrayObjectName) || isWebGL2OrHigher()) {
             if (!m_boundVertexArrayObject->isDefaultObject())
-                return WebGLAny(scriptState, PassRefPtrWillBeRawPtr<WebGLObject>(m_boundVertexArrayObject.get()));
+                return WebGLAny(scriptState, m_boundVertexArrayObject.get());
             return ScriptValue::createNull(scriptState);
         }
         synthesizeGLError(GL_INVALID_ENUM, "getParameter", "invalid parameter name, OES_vertex_array_object not enabled");
         return ScriptValue::createNull(scriptState);
     case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: // EXT_texture_filter_anisotropic
         if (extensionEnabled(EXTTextureFilterAnisotropicName))
             return getUnsignedIntParameter(scriptState, GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT);
         synthesizeGLError(GL_INVALID_ENUM, "getParameter", "invalid parameter name, EXT_texture_filter_anisotropic not enabled");
         return ScriptValue::createNull(scriptState);
     case GL_MAX_COLOR_ATTACHMENTS_EXT: // EXT_draw_buffers BEGIN
@@ skipping 131 matching lines @@
     }
 }
 
 String WebGLRenderingContextBase::getShaderInfoLog(WebGLShader* shader)
 {
     if (isContextLost() || !validateWebGLObject("getShaderInfoLog", shader))
         return String();
     return ensureNotNull(webContext()->getShaderInfoLog(objectOrZero(shader)));
 }
 
-PassRefPtrWillBeRawPtr<WebGLShaderPrecisionFormat> WebGLRenderingContextBase::getShaderPrecisionFormat(GLenum shaderType, GLenum precisionType)
+WebGLShaderPrecisionFormat* WebGLRenderingContextBase::getShaderPrecisionFormat(GLenum shaderType, GLenum precisionType)
 {
     if (isContextLost())
         return nullptr;
     switch (shaderType) {
     case GL_VERTEX_SHADER:
     case GL_FRAGMENT_SHADER:
         break;
     default:
         synthesizeGLError(GL_INVALID_ENUM, "getShaderPrecisionFormat", "invalid shader type");
         return nullptr;
@@ skipping 275 matching lines @@
                     notImplemented();
                 }
             }
         }
     }
     // If we get here, something went wrong in our unfortunately complex logic above
     synthesizeGLError(GL_INVALID_VALUE, "getUniform", "unknown error");
     return ScriptValue::createNull(scriptState);
 }
 
-PassRefPtrWillBeRawPtr<WebGLUniformLocation> WebGLRenderingContextBase::getUniformLocation(WebGLProgram* program, const String& name)
+WebGLUniformLocation* WebGLRenderingContextBase::getUniformLocation(WebGLProgram* program, const String& name)
 {
     if (isContextLost() || !validateWebGLObject("getUniformLocation", program))
         return nullptr;
     if (!validateLocationLength("getUniformLocation", name))
         return nullptr;
     if (!validateString("getUniformLocation", name))
         return nullptr;
     if (isPrefixReserved(name))
         return nullptr;
     if (!program->linkStatus()) {
@@ skipping 17 matching lines @@
     const WebGLVertexArrayObjectBase::VertexAttribState* state = m_boundVertexArrayObject->getVertexAttribState(index);
 
     if ((extensionEnabled(ANGLEInstancedArraysName) || isWebGL2OrHigher())
         && pname == GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE)
         return WebGLAny(scriptState, state->divisor);
 
     switch (pname) {
     case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING:
         if (!state->bufferBinding || !state->bufferBinding->object())
             return ScriptValue::createNull(scriptState);
-        return WebGLAny(scriptState, PassRefPtrWillBeRawPtr<WebGLObject>(state->bufferBinding.get()));
+        return WebGLAny(scriptState, state->bufferBinding.get());
     case GL_VERTEX_ATTRIB_ARRAY_ENABLED:
         return WebGLAny(scriptState, state->enabled);
     case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED:
         return WebGLAny(scriptState, state->normalized);
     case GL_VERTEX_ATTRIB_ARRAY_SIZE:
         return WebGLAny(scriptState, state->size);
     case GL_VERTEX_ATTRIB_ARRAY_STRIDE:
         return WebGLAny(scriptState, state->originalStride);
     case GL_VERTEX_ATTRIB_ARRAY_TYPE:
         return WebGLAny(scriptState, state->type);
@@ skipping 573 matching lines @@
     webContext()->stencilOp(fail, zfail, zpass);
 }
 
 void WebGLRenderingContextBase::stencilOpSeparate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass)
 {
     if (isContextLost())
         return;
     webContext()->stencilOpSeparate(face, fail, zfail, zpass);
 }
 
-PassRefPtrWillBeRawPtr<CHROMIUMValuebuffer> WebGLRenderingContextBase::createValuebufferCHROMIUM()
+CHROMIUMValuebuffer* WebGLRenderingContextBase::createValuebufferCHROMIUM()
 {
     if (isContextLost())
         return nullptr;
-    RefPtrWillBeRawPtr<CHROMIUMValuebuffer> o = CHROMIUMValuebuffer::create(this);
-    addSharedObject(o.get());
-    return o.release();
+    CHROMIUMValuebuffer* o = CHROMIUMValuebuffer::create(this);
+    addSharedObject(o);
+    return o;
 }
 
 void WebGLRenderingContextBase::deleteValuebufferCHROMIUM(CHROMIUMValuebuffer *valuebuffer)
 {
     if (!deleteObject(valuebuffer))
         return;
     if (valuebuffer == m_valuebufferBinding)
         m_valuebufferBinding = nullptr;
 }
 
@@ skipping 1155 matching lines @@
 
 void WebGLRenderingContextBase::addContextObject(WebGLContextObject* object)
 {
     ASSERT(!isContextLost());
     m_contextObjects.add(object);
 }
 
 void WebGLRenderingContextBase::detachAndRemoveAllObjects()
 {
     while (m_contextObjects.size() > 0) {
-        WillBeHeapHashSet<RawPtrWillBeWeakMember<WebGLContextObject>>::iterator it = m_contextObjects.begin();
+        auto it = m_contextObjects.begin();

[haraken, 2015/08/04 00:06:52]

It would be worth having a comment and mention that the detachContext() can
remove the object from the m_contextObjects (and thus we need to look up the
begin() every time).

[peria, 2015/08/04 09:10:26]

Done.

         (*it)->detachContext();
     }
 }
 
 void WebGLRenderingContextBase::stop()
 {
     if (!isContextLost()) {
         // Never attempt to restore the context because the page is being torn down.
         forceLostContext(SyntheticLostContext, Manual);
     }
@@ skipping 867 matching lines @@
         return false;
     }
     return true;
 }
 
 WebGLBuffer* WebGLRenderingContextBase::validateBufferDataTarget(const char* functionName, GLenum target)
 {
     WebGLBuffer* buffer = nullptr;
     switch (target) {
     case GL_ELEMENT_ARRAY_BUFFER:
-        buffer = m_boundVertexArrayObject->boundElementArrayBuffer().get();
+        buffer = m_boundVertexArrayObject->boundElementArrayBuffer();
         break;
     case GL_ARRAY_BUFFER:
         buffer = m_boundArrayBuffer.get();
         break;
     default:
         synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid target");
         return nullptr;
     }
     if (!buffer) {
         synthesizeGLError(GL_INVALID_OPERATION, functionName, "no buffer");
@@ skipping 505 matching lines @@
 DEFINE_TRACE(WebGLRenderingContextBase::TextureUnitState)
 {
     visitor->trace(m_texture2DBinding);
     visitor->trace(m_textureCubeMapBinding);
     visitor->trace(m_texture3DBinding);
     visitor->trace(m_texture2DArrayBinding);
 }
 
 DEFINE_TRACE(WebGLRenderingContextBase)
 {
-#if ENABLE(OILPAN)
     visitor->trace(m_contextObjects);
     visitor->trace(m_contextLostCallbackAdapter);
     visitor->trace(m_errorMessageCallbackAdapter);
     visitor->trace(m_boundArrayBuffer);
     visitor->trace(m_defaultVertexArrayObject);
     visitor->trace(m_boundVertexArrayObject);
     visitor->trace(m_vertexAttrib0Buffer);
     visitor->trace(m_currentProgram);
     visitor->trace(m_framebufferBinding);
     visitor->trace(m_renderbufferBinding);
     visitor->trace(m_valuebufferBinding);
     visitor->trace(m_textureUnits);
     visitor->trace(m_blackTexture2D);
     visitor->trace(m_blackTextureCubeMap);
-    visitor->trace(m_requestedAttributes);
     visitor->trace(m_extensions);
-#endif
     CanvasRenderingContext::trace(visitor);
 }
 
 int WebGLRenderingContextBase::externallyAllocatedBytesPerPixel()
 {
     if (isContextLost())
         return 0;
 
     int bytesPerPixel = 4;
     int totalBytesPerPixel = bytesPerPixel * 2; // WebGL's front and back color buffers.
@@ skipping 15 matching lines @@
 
     return totalBytesPerPixel;
 }
 
 DrawingBuffer* WebGLRenderingContextBase::drawingBuffer() const
 {
     return m_drawingBuffer.get();
 }
 
 } // namespace blink