Revert 96912 - Always call setActive() in WebViewImpl::setFocus(),

Revert 96912 - Always call setActive() in WebViewImpl::setFocus(),
not just when enabling focus.
https://bugs.webkit.org/show_bug.cgi?id=65220

Reviewed by Darin Fisher.

* WebKit.gyp:
* WebKit.gypi:
* src/WebViewImpl.cpp:
(WebKit::WebViewImpl::setFocus):
* tests/FrameTestHelpers.cpp: Added, refactored out of WebFrameTest.cpp.
(WebKit::FrameTestHelpers::registerMockedURLLoad):
(WebKit::FrameTestHelpers::loadFrame):
(WebKit::FrameTestHelpers::defaultWebFrameClient):
(WebKit::FrameTestHelpers::defaultWebViewClient):
(WebKit::FrameTestHelpers::createWebViewAndLoad):
* tests/FrameTestHelpers.h: Added, refactored out of WebFrameTest.cpp.
* tests/WebFrameTest.cpp:
* tests/WebViewTest.cpp: Added.


TBR=japhet@chromium.org
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=99236