https://bugs.webkit.org/show_bug.cgi?id=127048

Reviewed by Anders Carlsson.

In r162034, the progress tracker client was separated from FrameLoaderClient into the
ProgressTrackerClient class. This patch adds the WebKit layer implementation of that
class for GTK-WK1 that's practically identical to the client implementation that was
in use under WebKit::FrameLoaderClient.

* GNUmakefile.am:
* WebCoreSupport/FrameLoaderClientGtk.cpp:
* WebCoreSupport/FrameLoaderClientGtk.h:
* WebCoreSupport/ProgressTrackerClientGtk.cpp: Added.
(WebKit::ProgressTrackerClient::ProgressTrackerClient):
(WebKit::ProgressTrackerClient::progressTrackerDestroyed):
(WebKit::ProgressTrackerClient::progressStarted):
(WebKit::ProgressTrackerClient::progressEstimateChanged):
(WebKit::ProgressTrackerClient::progressFinished):
* WebCoreSupport/ProgressTrackerClientGtk.h: Added.
* webkit/webkitwebview.cpp:
(webkit_web_view_init):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@162069 268f45cc-cd09-0410-ab3c-d52691b4dbfc