Content size notification was only used for the Mac overlay navigation code,...

Content size notification was only used for the Mac overlay navigation code, which no longer needs it as of Chromium r274906.

Remove it.

BUG=321437
TEST=everything still compiles and works.

Review URL: https://codereview.chromium.org/322793004

git-svn-id: svn://svn.chromium.org/blink/trunk@175861 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/web/ChromeClientImpl.cpp

@@ -531,8 +531,6 @@ void ChromeClientImpl::contentsSizeChanged(LocalFrame* frame, const IntSize& siz
 
     WebLocalFrameImpl* webframe = WebLocalFrameImpl::fromFrame(frame);
     webframe->didChangeContentsSize(size);
-    if (webframe->client())
-        webframe->client()->didChangeContentsSize(webframe, size);
 
     frame->loader().restoreScrollPositionAndViewState();
 }

third_party/WebKit/public/web/WebFrameClient.h

@@ -396,9 +396,6 @@ public:
     // The frame's document finished the initial non-empty layout of a page.
     virtual void didFirstVisuallyNonEmptyLayout(WebLocalFrame*) { }
 
-    // The size of the content area changed.
-    virtual void didChangeContentsSize(WebLocalFrame*, const WebSize&) { }
-
     // The main frame scrolled.
     virtual void didChangeScrollOffset(WebLocalFrame*) { }