Revert 168457 "WebGL: Transfer ownership of WebGraphicsContext3D..."

trunk/Source/web/tests/DrawingBufferTest.cpp

Index: trunk/Source/web/tests/DrawingBufferTest.cpp
===================================================================
--- trunk/Source/web/tests/DrawingBufferTest.cpp	(revision 168480)
+++ trunk/Source/web/tests/DrawingBufferTest.cpp	(working copy)
@@ -112,17 +112,16 @@
     virtual void SetUp()
     {
         RefPtr<FakeContextEvictionManager> contextEvictionManager = adoptRef(new FakeContextEvictionManager());
-        OwnPtr<WebGraphicsContext3DForTests> context = adoptPtr(new WebGraphicsContext3DForTests);
-        m_context = context.get();
-        m_drawingBuffer = DrawingBuffer::create(context.release(), IntSize(initialWidth, initialHeight), DrawingBuffer::Preserve, contextEvictionManager.release());
+        m_context = adoptPtr(new WebGraphicsContext3DForTests);
+        m_drawingBuffer = DrawingBuffer::create(m_context.get(), IntSize(initialWidth, initialHeight), DrawingBuffer::Preserve, contextEvictionManager.release());
     }
 
     WebGraphicsContext3DForTests* webContext()
     {
-        return m_context;
+        return m_context.get();
     }
 
-    WebGraphicsContext3DForTests* m_context;
+    OwnPtr<WebGraphicsContext3DForTests> m_context;
     RefPtr<DrawingBuffer> m_drawingBuffer;
 };
 
@@ -142,6 +141,16 @@
     EXPECT_FALSE(imageBuffer->bitmap().isNull());
 }
 
+TEST_F(DrawingBufferTest, verifyNoNewBuffersAfterContextLostWithMailboxes)
+{
+    // Tell the buffer its contents changed and context was lost.
+    m_drawingBuffer->markContentsChanged();
+    m_drawingBuffer->releaseResources();
+
+    blink::WebExternalTextureMailbox mailbox;
+    EXPECT_FALSE(m_drawingBuffer->prepareMailbox(&mailbox, 0));
+}
+
 TEST_F(DrawingBufferTest, verifyResizingProperlyAffectsMailboxes)
 {
     blink::WebExternalTextureMailbox mailbox;