Convert more automation calls to the JSON interface.

chrome/test/automation/browser_proxy.cc

Index: chrome/test/automation/browser_proxy.cc
diff --git a/chrome/test/automation/browser_proxy.cc b/chrome/test/automation/browser_proxy.cc
index 0854505afd8aa23aa83103bb594ce606dee86d84..2d6ac92a37b9f4a5b1ff7711cc93c6fde33cec41 100644
--- a/chrome/test/automation/browser_proxy.cc
+++ b/chrome/test/automation/browser_proxy.cc
@@ -205,14 +205,6 @@ bool BrowserProxy::WaitForTabToBecomeActive(int tab,
   return false;
 }
 
-bool BrowserProxy::OpenFindInPage() {
-  if (!is_valid())
-    return false;
-
-  return sender_->Send(new AutomationMsg_OpenFindInPage(handle_));
-  // This message expects no response.
-}
-
 bool BrowserProxy::IsFindWindowFullyVisible(bool* is_visible) {
   if (!is_valid())
     return false;