Revert of [Oilpan] Prepare full definition of classes before using Member

third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h

Index: third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h
diff --git a/third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h b/third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h
index b8abf71ae402a22599c2d621a94b2dae630a441d..748c4ed3246a36ece76d65f92d6a1faf32db7875 100644
--- a/third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h
+++ b/third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h
@@ -129,8 +129,21 @@ struct FormatTypeCompare {
 class ScopedDrawingBufferBinder {
     STACK_ALLOCATED();
 public:
-    ScopedDrawingBufferBinder(DrawingBuffer*, WebGLFramebuffer*);
-    ~ScopedDrawingBufferBinder();
+    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;
@@ -745,8 +758,21 @@ protected:
     class ScopedDrawingBufferBinder {
         STACK_ALLOCATED();
     public:
-        ScopedDrawingBufferBinder(DrawingBuffer*, WebGLFramebuffer*);
-        ~ScopedDrawingBufferBinder();
+        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;