Add new FrameTest.* unit tests and fix discovered CefFrame-related bugs.

- Allow empty |name| argument to CefBrowser::GetFrame. This will return the main frame.
- Modify CefBrowser::GetFrame to search both assigned and unique frame names.
- Calling CefFrame::IsFocused on the main frame should return true when there are no other frames.
- Fix CefBrowser::GetFrameIdentifiers and GetFrameNames to return correct values in the renderer process (issue #1236).
- Delete NavigationTest.FrameNameIdent which is now obsoleted by the new FrameTests.

git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/2062@1843 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/renderer/webkit_glue.h

@@ -38,6 +38,11 @@ bool SetNodeValue(blink::WebNode& node, const blink::WebString& value);
 
 int64 GetIdentifier(blink::WebFrame* frame);
 
+// Find the frame with the specified |unique_name| relative to
+// |relative_to_frame| in the frame hierarchy.
+blink::WebFrame* FindFrameByUniqueName(const blink::WebString& unique_name,
+                                       blink::WebFrame* relative_to_frame);
+
 }  // webkit_glue
 
 #endif  // CEF_LIBCEF_RENDERER_WEBKIT_GLUE_H_