Modify Copy{Sub}TextureCHROMIUM entry point to add level argument

third_party/WebKit/Source/platform/graphics/gpu/DrawingBuffer.cpp

 /*
  * Copyright (c) 2010, Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 338 matching lines @@
                                      GL_STENCIL_ATTACHMENT};
       m_stateRestorer->setFramebufferBindingDirty();
       m_gl->BindFramebuffer(GL_FRAMEBUFFER, m_fbo);
       m_gl->DiscardFramebufferEXT(GL_FRAMEBUFFER, 3, attachments);
     }
   } else {
     // If we can't discard the backbuffer, create (or recycle) a buffer to put
     // in the mailbox, and copy backbuffer's contents there.
     colorBufferForMailbox = createOrRecycleColorBuffer();
     m_gl->CopySubTextureCHROMIUM(
-        m_backColorBuffer->textureId, colorBufferForMailbox->textureId, 0, 0, 0,
-        0, m_size.width(), m_size.height(), GL_FALSE, GL_FALSE, GL_FALSE);
+        m_backColorBuffer->textureId, 0, colorBufferForMailbox->textureId, 0, 0,
+        0, 0, 0, m_size.width(), m_size.height(), GL_FALSE, GL_FALSE, GL_FALSE);
   }
 
   // Put colorBufferForMailbox into its mailbox, and populate its
   // produceSyncToken with that point.
   {
     m_gl->ProduceTextureDirectCHROMIUM(colorBufferForMailbox->textureId,
                                        colorBufferForMailbox->parameters.target,
                                        colorBufferForMailbox->mailbox.name);
     const GLuint64 fenceSync = m_gl->InsertFenceSyncCHROMIUM();
 #if OS(MACOSX)
@@ skipping 352 matching lines @@
       gl->CreateAndConsumeTextureCHROMIUM(target, mailbox.name);
 
   GLboolean unpackPremultiplyAlphaNeeded = GL_FALSE;
   GLboolean unpackUnpremultiplyAlphaNeeded = GL_FALSE;
   if (m_wantAlphaChannel && m_premultipliedAlpha && !premultiplyAlpha)
     unpackUnpremultiplyAlphaNeeded = GL_TRUE;
   else if (m_wantAlphaChannel && !m_premultipliedAlpha && premultiplyAlpha)
     unpackPremultiplyAlphaNeeded = GL_TRUE;
 
   gl->CopySubTextureCHROMIUM(
-      sourceTexture, texture, destTextureOffset.x(), destTextureOffset.y(),
-      sourceSubRectangle.x(), sourceSubRectangle.y(),
+      sourceTexture, 0, texture, 0, destTextureOffset.x(),
+      destTextureOffset.y(), sourceSubRectangle.x(), sourceSubRectangle.y(),
       sourceSubRectangle.width(), sourceSubRectangle.height(), flipY,
       unpackPremultiplyAlphaNeeded, unpackUnpremultiplyAlphaNeeded);
 
   gl->DeleteTextures(1, &sourceTexture);
 
   const GLuint64 fenceSync = gl->InsertFenceSyncCHROMIUM();
 
   gl->Flush();
   gpu::SyncToken syncToken;
   gl->GenSyncTokenCHROMIUM(fenceSync, syncToken.GetData());
@@ skipping 521 matching lines @@
   if (m_pixelUnpackBufferBindingDirty)
     client->DrawingBufferClientRestorePixelUnpackBufferBinding();
 }
 
 bool DrawingBuffer::shouldUseChromiumImage() {
   return RuntimeEnabledFeatures::webGLImageChromiumEnabled() &&
          m_chromiumImageUsage == AllowChromiumImage;
 }
 
 }  // namespace blink