Updated render_view_impl to use setPageScaleFactor instead of scalePage.
Updated render_view_impl to use setPageScaleFactor instead of scalePage.

scalePage is getting renamed to setPageScaleFactor to match WebCore.

Once this patch lands, WebViewImpl::scalePage will be deleted.

BUG=none
TEST=manually


Review URL: http://codereview.chromium.org/8477033

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@109062 0039d316-1c4b-4281-b951-d872f2087c98

yitian134/chromium,yitian134/chromium,yitian134/chromium,gavinp/chromium,gavinp/chromium,adobe/chromium,adobe/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,yitian134/chromium,gavinp/chromium,gavinp/chromium,ropik/chromium,yitian134/chromium,gavinp/chromium,adobe/chromium,gavinp/chromium,adobe/chromium,adobe/chromium,adobe/chromium,yitian134/chromium,adobe/chromium,ropik/chromium,ropik/chromium,adobe/chromium,ropik/chromium,yitian134/chromium,gavinp/chromium,ropik/chromium,gavinp/chromium,adobe/chromium,ropik/chromium,ropik/chromium,ropik/chromium,gavinp/chromium,yitian134/chromium,gavinp/chromium,adobe/chromium,yitian134/chromium