DevTools: move DevToolsAgent/Client into content.

BUG=84078
TEST=

Review URL: http://codereview.chromium.org/7461019

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@93596 0039d316-1c4b-4281-b951-d872f2087c98
void RenderView::OnSetWebUIProperty(const std::string& name,
                                    const std::string& value) {
  DCHECK(BindingsPolicy::is_web_ui_enabled(enabled_bindings_));
  GetWebUIBindings()->SetProperty(name, value);
}

void RenderView::OnSetWebUIProperty(const std::string& name,
                                    const std::string& value) {
  DCHECK(BindingsPolicy::is_web_ui_enabled(enabled_bindings_));
  GetWebUIBindings()->SetProperty(name, value);
}
