Track text selection on the browser side (Mac)

content/browser/renderer_host/text_input_manager.h

Index: content/browser/renderer_host/text_input_manager.h
diff --git a/content/browser/renderer_host/text_input_manager.h b/content/browser/renderer_host/text_input_manager.h
index 6af828f83c1e8136f76b87b96e739cfa07f11b5d..61bef099a4acebcf715371f2c52ed9ee98d22e05 100644
--- a/content/browser/renderer_host/text_input_manager.h
+++ b/content/browser/renderer_host/text_input_manager.h
@@ -68,6 +68,10 @@ class CONTENT_EXPORT TextInputManager {
     TextSelection(const TextSelection& other);
     ~TextSelection();
 
+    // If text selection is valid, |text| will be populated with the selected
+    // text and the method will return true. Otherwise, it will return false.
+    bool GetSelectedText(base::string16* text) const;
+
     // The offset of the text stored in |text| relative to the start of the web
     // page.
     size_t offset;