Prevent new loads while in PageCache (or being added to PageCache)

[Chris Dumez]

Prevent new loads while in PageCache (or being added to PageCache).

[Chris Dumez]

rdar://problem/21523788

[Chris Dumez]

Created attachment 255540 [details]
Patch

[Chris Dumez]

Comment on attachment 255540 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=255540&action=review

> Source/WebCore/loader/cache/CachedResource.cpp:218
> +    if (cachedResourceLoader.frame()->page() && cachedResourceLoader.frame()->page()->inPageCache()) {

This is the actual change. The test of the patch is about getting rid of the complexity I added in r185337.

[Darin Adler]

Comment on attachment 255540 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=255540&action=review

> Source/WebCore/loader/FrameLoader.h:280
> +    enum class PageDismissalType {
> +        None,
> +        BeforeUnload,
> +        PageHide,
> +        Unload
> +    };

I like this better in a single line; not sure if others agree.

> Source/WebCore/loader/cache/CachedResource.cpp:217
> +    // Prevent new loads if we are in the PageCache (or being added to the PageCache).

I would not use parentheses here. Just leave them out.

> Source/WebCore/page/Page.cpp:571
> +    auto* document = mainFrame().document();
> +    if (!document)
> +        return false;
> +
> +    return document->inPageCache();

I like writing it like this:

    auto* document = mainFrame().document();
    return document && document->inPageCache();

[Chris Dumez]

Committed r186005: <http://trac.webkit.org/changeset/186005>