[chromedriver] Support clicking an element in sub frames.

chrome/test/chromedriver/basic_types.h

Index: chrome/test/chromedriver/basic_types.h
diff --git a/chrome/test/chromedriver/basic_types.h b/chrome/test/chromedriver/basic_types.h
index 8a623c481d3b944f3001b1a620defe9712170ee0..ac052868cc1c897aac4965cd35c12da47c3861d1 100644
--- a/chrome/test/chromedriver/basic_types.h
+++ b/chrome/test/chromedriver/basic_types.h
@@ -5,12 +5,14 @@
 #ifndef CHROME_TEST_CHROMEDRIVER_BASIC_TYPES_H_
 #define CHROME_TEST_CHROMEDRIVER_BASIC_TYPES_H_
 
+#include <string>
+
 struct WebPoint {
   WebPoint();
   WebPoint(int x, int y);
   ~WebPoint();
 
-  void offset(int x_, int y_);
+  void Offset(int x_, int y_);
 
   int x;
   int y;
@@ -31,13 +33,27 @@ struct WebRect {
   WebRect(const WebPoint& origin, const WebSize& size);
   ~WebRect();
 
-  int x();
-  int y();
-  int width();
-  int height();
+  int width() const;
+  int height() const;
 
   WebPoint origin;
   WebSize size;
 };
 
+struct Frame {
+  Frame();
+  Frame(const std::string& id,
+        const std::string& parent_id,
+        const std::string& name,
+        int index);
+
+  bool IsSubFrame() const;
+  bool HasName() const;
+
+  std::string id;
+  std::string parent_id;
+  std::string name;
+  int index;
+};
+
 #endif  // CHROME_TEST_CHROMEDRIVER_BASIC_TYPES_H_