Reland: Update TextSelection for non-user initiated events

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 b4cbcaec304d476ef5303f8c8a456639310e0919..55cc46caf8856d680e8086e916cacc0c506f34eb 100644
--- a/content/browser/renderer_host/text_input_manager.h
+++ b/content/browser/renderer_host/text_input_manager.h
@@ -105,20 +105,22 @@ class CONTENT_EXPORT TextInputManager {
 
     void SetSelection(const base::string16& text,
                       size_t offset,
-                      const gfx::Range& range);
+                      const gfx::Range& range,
+                      bool user_initiated);
 
     const base::string16& selected_text() const { return selected_text_; }
     size_t offset() const { return offset_; }
     const gfx::Range& range() const { return range_; }
     const base::string16& text() const { return text_; }
+    bool user_initiated() const { return user_initiated_; }
 
    private:
     // The offset of the text stored in |text| relative to the start of the web
     // page.
-    size_t offset_;
+    size_t offset_ = 0;
 
     // The range of the selection in the page (highlighted text).
-    gfx::Range range_;
+    gfx::Range range_ = gfx::Range::InvalidRange();
 
     // The highlighted text which is the portion of |text_| marked by |offset_|
     // and |range_|. It will be an empty string if either |text_| or |range_|
@@ -129,6 +131,9 @@ class CONTENT_EXPORT TextInputManager {
     // Part of the text on the page which includes the highlighted text plus
     // possibly several characters before and after it.
     base::string16 text_;
+
+    // True if text selection is triggered by user input.
+    bool user_initiated_ = false;
   };
 
   TextInputManager();
@@ -194,7 +199,8 @@ class CONTENT_EXPORT TextInputManager {
   void SelectionChanged(RenderWidgetHostViewBase* view,
                         const base::string16& text,
                         size_t offset,
-                        const gfx::Range& range);
+                        const gfx::Range& range,
+                        bool user_initiated);
 
   // Registers the given |view| for tracking its TextInputState. This is called
   // by any view which has updates in its TextInputState (whether tab's RWHV or