Let canvas decide how to handle the lost resource: WebGL part

Source/platform/graphics/gpu/DrawingBuffer.cpp

Index: Source/platform/graphics/gpu/DrawingBuffer.cpp
diff --git a/Source/platform/graphics/gpu/DrawingBuffer.cpp b/Source/platform/graphics/gpu/DrawingBuffer.cpp
index 8b013993fa60f04726134cfbe2c9c91581745d8a..aca1f945bfd666f168738bc11015bc9537f2fa5a 100644
--- a/Source/platform/graphics/gpu/DrawingBuffer.cpp
+++ b/Source/platform/graphics/gpu/DrawingBuffer.cpp
@@ -277,12 +277,7 @@ bool DrawingBuffer::prepareMailbox(blink::WebExternalTextureMailbox* outMailbox,
 
 void DrawingBuffer::mailboxReleased(const blink::WebExternalTextureMailbox& mailbox, bool lostResource)
 {
-    if (lostResource) {
-        // TODO(hmin): handle the case if the resource is lost.
-        return;
-    }
-
-    if (m_destructionInProgress) {
+    if (m_destructionInProgress || m_context->isContextLost() || lostResource) {
         mailboxReleasedWhileDestructionInProgress(mailbox);
         return;
     }