First pass at refactoring pyautolib in preparation for removing proxy dependencies.

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 a0e18bc816825db7a5842ac9885e07fd5078055f..867de74306a9893a52ead4f106b8e8e3a69c0c60 100644
--- a/chrome/test/automation/browser_proxy.cc
+++ b/chrome/test/automation/browser_proxy.cc
@@ -428,11 +428,12 @@ bool BrowserProxy::SendJSONRequest(const std::string& request,
     return false;
 
   bool result = false;
-  if (!sender_->Send(new AutomationMsg_SendJSONRequest(handle_,
-                                                       request,
-                                                       response,
-                                                       &result),
-                                                       timeout_ms))
+  if (!sender_->Send(
+      new AutomationMsg_SendJSONRequestWithBrowserHandle(handle_,
+                                                         request,
+                                                         response,
+                                                         &result),
+                                                         timeout_ms))
     return false;
   return result;
 }