Modify ResourceFetcher to use WebURLLoader instead of ResourceHandle....

Modify ResourceFetcher to use WebURLLoader instead of ResourceHandle.
This is step 1 of moving ResourceFetcher usage out of WebFrame.  This
CL adds a new method to WebFrame, named DispatchWillSendRequest, which
may be used to associate a WebURLRequest with the WebFrame.  This
triggers the WebViewDelegate's WillSendRequest method among other things.

ResourceFetcher and friends have been modified to use callbacks instead
of delegates.  I just find this approach a bit cleaner and easier to
work with.

BUG=15648
TEST=none
R=brettw

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=20031

[brettw, 2009-07-07 15:59:52]

LGTM, seems nicer.

http://codereview.chromium.org/149172/diff/1028/62
File webkit/glue/resource_fetcher.cc (right):

http://codereview.chromium.org/149172/diff/1028/62#newcode26
Line 26: : url_(url), callback_(c), completed_(false) {
Can you put these initializers on separate lines?

[darin (slow to review), 2009-07-07 16:20:52]

http://codereview.chromium.org/149172/diff/1028/62
File webkit/glue/resource_fetcher.cc (right):

http://codereview.chromium.org/149172/diff/1028/62#newcode26
Line 26: : url_(url), callback_(c), completed_(false) {
On 2009/07/07 15:59:53, brettw wrote:
> Can you put these initializers on separate lines?

OK