Support tracking focused node element for OOPIFs.

content/public/test/text_input_test_utils.h

Index: content/public/test/text_input_test_utils.h
diff --git a/content/public/test/text_input_test_utils.h b/content/public/test/text_input_test_utils.h
index d41687a00c7ff868811996593f6535e79cfe5d78..a552dd4ca58e207233b0cc556c9c9a41dda269c9 100644
--- a/content/public/test/text_input_test_utils.h
+++ b/content/public/test/text_input_test_utils.h
@@ -28,6 +28,7 @@ class Range;
 namespace content {
 
 class MessageLoopRunner;
+class RenderFrameHost;
 class RenderProcessHost;
 class RenderWidgetHost;
 class RenderWidgetHostView;
@@ -61,6 +62,9 @@ RenderWidgetHostView* GetActiveViewFromWebContents(WebContents* web_contents);
 // either due to missing TextInputManager or lack of an active widget.
 bool RequestCompositionInfoFromActiveWidget(WebContents* web_contents);
 
+// Returns true if |frame| has a focused editable element.
+bool DoesFrameHaveFocusedEditableElement(RenderFrameHost* frame);
+
 // This class provides the necessary API for accessing the state of and also
 // observing the TextInputManager for WebContents.
 class TextInputManagerTester {