Even more test cleanup. Some fixes to non-test code.

chrome/test/webdriver/commands/execute_command.cc

Index: chrome/test/webdriver/commands/execute_command.cc
diff --git a/chrome/test/webdriver/commands/execute_command.cc b/chrome/test/webdriver/commands/execute_command.cc
index 96a0983e03cef084d522d8305640b9c79a7bab90..dc68e415197387543ed34cc4173e53fd00e6f299 100644
--- a/chrome/test/webdriver/commands/execute_command.cc
+++ b/chrome/test/webdriver/commands/execute_command.cc
@@ -13,6 +13,13 @@ namespace webdriver {
 const char kArgs[] = "args";
 const char kScript[] = "script";
 
+ExecuteCommand::ExecuteCommand(const std::vector<std::string>& path_segments,
+                               const DictionaryValue* const parameters)
+    : WebDriverCommand(path_segments, parameters) {}
+
+ExecuteCommand::~ExecuteCommand() {}
+
+
 bool ExecuteCommand::Init(Response* const response) {
   if (!WebDriverCommand::Init(response)) {
     SET_WEBDRIVER_ERROR(response, "Failure on Init for execute command",
@@ -30,6 +37,10 @@ bool ExecuteCommand::Init(Response* const response) {
   return true;
 }
 
+bool ExecuteCommand::DoesPost() {
+  return true;
+}
+
 void ExecuteCommand::ExecutePost(Response* const response) {
   int error_code = 0;
   std::string error_msg;
@@ -73,5 +84,9 @@ void ExecuteCommand::ExecutePost(Response* const response) {
   response->set_status(kSuccess);
 }
 
+bool ExecuteCommand::RequiresValidTab() {
+  return true;
+}
+
 }  // namspace webdriver