For webkit_glue::MockWebFrame, define setScrollOffset() that will be soon introduced.

For webkit_glue::MockWebFrame, define setScrollOffset() that will be soon introduced.

(by https://bugs.webkit.org/show_bug.cgi?id=54632).

Otherwise, landing the WebKit patch results in Chromium build breakage.
Example:
.\glue\media\buffered_resource_loader_unittest.cc(87) : error C2259: 'testing::NiceMock<MockClass>' : cannot instantiate abstract class
    with
    [
      MockClass=webkit_glue::MockWebFrame
    ]
    due to following members:
    'void WebKit::WebFrame::setScrollOffset(const WebKit::WebSize &)' : is abstract
    c:\b\build\slave\webkit-win-latest-rel\build\src\third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h(146) : see declaration of 'WebKit::WebFrame::setScrollOffset'

BUG=none
TEST=none

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=75367

[Yuzo, 2011-02-18 05:04:57]

Hamaji-san, can you review this?

I need to commit the patches in the following order:
1. http://codereview.chromium.org/6538049/ (this patch)
2. https://bugs.webkit.org/show_bug.cgi?id=54632
3. http://codereview.chromium.org/6539011/

[hamaji, 2011-02-18 06:28:41]

LGTM