[chromedriver] Support clicking an element in sub frames.

chrome/test/chromedriver/commands_unittest.cc

Index: chrome/test/chromedriver/commands_unittest.cc
diff --git a/chrome/test/chromedriver/commands_unittest.cc b/chrome/test/chromedriver/commands_unittest.cc
index 8baa18a677213995ed82b44791057dbfee4663cb..4a0b3ac74a64595c5ad1169ba3dc747d7f43680b 100644
--- a/chrome/test/chromedriver/commands_unittest.cc
+++ b/chrome/test/chromedriver/commands_unittest.cc
@@ -231,7 +231,7 @@ TEST(CommandsTest, SuccessfulFindElement) {
   FindElementWebView web_view(true, kElementExistsQueryTwice);
   Session session("id");
   session.implicit_wait = 1000;
-  session.frame = "frame_id1";
+  session.SwitchToSubFrame("frame_id1", "");
   base::DictionaryValue params;
   params.SetString("using", "id");
   params.SetString("value", "a");
@@ -260,7 +260,7 @@ TEST(CommandsTest, SuccessfulFindElements) {
   FindElementWebView web_view(false, kElementExistsQueryTwice);
   Session session("id");
   session.implicit_wait = 1000;
-  session.frame = "frame_id2";
+  session.SwitchToSubFrame("frame_id2", "");
   base::DictionaryValue params;
   params.SetString("using", "name");
   params.SetString("value", "b");
@@ -294,7 +294,7 @@ TEST(CommandsTest, SuccessfulFindChildElement) {
   FindElementWebView web_view(true, kElementExistsQueryTwice);
   Session session("id");
   session.implicit_wait = 1000;
-  session.frame = "frame_id3";
+  session.SwitchToSubFrame("frame_id3", "");
   base::DictionaryValue params;
   params.SetString("using", "tag name");
   params.SetString("value", "div");
@@ -332,7 +332,7 @@ TEST(CommandsTest, SuccessfulFindChildElements) {
   FindElementWebView web_view(false, kElementExistsQueryTwice);
   Session session("id");
   session.implicit_wait = 1000;
-  session.frame = "frame_id4";
+  session.SwitchToSubFrame("frame_id4", "");
   base::DictionaryValue params;
   params.SetString("using", "class name");
   params.SetString("value", "c");