Merge 121076 - [chromium] LayerRendererChromium is not getting visibility messages in single thread…

Source/WebCore/platform/graphics/chromium/TrackingTextureAllocator.cpp

Index: Source/WebCore/platform/graphics/chromium/TrackingTextureAllocator.cpp
===================================================================
--- Source/WebCore/platform/graphics/chromium/TrackingTextureAllocator.cpp	(revision 122257)
+++ Source/WebCore/platform/graphics/chromium/TrackingTextureAllocator.cpp	(working copy)
@@ -89,6 +89,7 @@
         extensions->texStorage2DEXT(GraphicsContext3D::TEXTURE_2D, 1, storageFormat, size.width(), size.height());
     } else
         GLC(m_context.get(), m_context->texImage2DResourceSafe(GraphicsContext3D::TEXTURE_2D, 0, format, size.width(), size.height(), 0, format, GraphicsContext3D::UNSIGNED_BYTE));
+    m_allocatedTextureIds.add(textureId);
     return textureId;
 }
 
@@ -96,7 +97,17 @@
 {
     m_currentMemoryUseBytes -= TextureManager::memoryUseBytes(size, format);
     GLC(m_context.get(), m_context->deleteTexture(textureId));
+    ASSERT(m_allocatedTextureIds.contains(textureId));
+    m_allocatedTextureIds.remove(textureId);
 }
 
+void TrackingTextureAllocator::deleteAllTextures()
+{
+    for (HashSet<unsigned>::const_iterator it = m_allocatedTextureIds.begin(); it != m_allocatedTextureIds.end(); ++it)
+        GLC(m_context.get(), m_context->deleteTexture(*it));
+    m_currentMemoryUseBytes = 0;
+    m_allocatedTextureIds.clear();
 }
 
+}
+