Command to mark surface inactive, so gpu process can release resources.

content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.cc

Index: content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.cc
diff --git a/content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.cc b/content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.cc
index c61a79afd21aa6534c9d785fa9b503ad3efbe93d..00cdc1da842a57a4f193d80a78ad1e3b884f248c 100644
--- a/content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.cc
+++ b/content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.cc
@@ -275,6 +275,13 @@ void WebGraphicsContext3DCommandBufferImpl::reshape(int width, int height) {
 #endif  // FLIP_FRAMEBUFFER_VERTICALLY
 }
 
+void WebGraphicsContext3DCommandBufferImpl::setVisibility(bool visible) {
+  printf("\nVisibility Changed: %s\n", visible ? "true" : "false");
+  fflush(stdout);
+  gl_->SetSurfaceVisibleCHROMIUM(visible);
+  gl_->Flush();

[jonathan.backer, 2011/09/27 16:53:14]

Don't think that the flush is necessary if you're using a separate
glSetSurfaceVisibleCHROMIUM command to communicate with the GPU process.

[mmocny, 2011/09/28 21:37:33]

See discussion in other comment.

On 2011/09/27 16:53:14, jonathan.backer wrote:

+}
+
 #ifdef FLIP_FRAMEBUFFER_VERTICALLY
 void WebGraphicsContext3DCommandBufferImpl::FlipVertically(
     uint8* framebuffer,