[refactor] Cleanup IME State in RenderWidgetHostViewMac which is already tracked by TextInputManager

content/browser/renderer_host/render_widget_host_view_mac.h

Index: content/browser/renderer_host/render_widget_host_view_mac.h
diff --git a/content/browser/renderer_host/render_widget_host_view_mac.h b/content/browser/renderer_host/render_widget_host_view_mac.h
index 3395188313c87beea099e7e6bccffd511549acce..aff124f7cd29e6473ba1e611ad81e2fedd9c893a 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.h
+++ b/content/browser/renderer_host/render_widget_host_view_mac.h
@@ -377,11 +377,6 @@ class CONTENT_EXPORT RenderWidgetHostViewMac
 
   void SetTextInputActive(bool active);
 
-  const std::string& selected_text() const { return selected_text_; }
-  const gfx::Range& composition_range() const { return composition_range_; }
-  const base::string16& selection_text() const { return selection_text_; }
-  size_t selection_text_offset() const { return selection_text_offset_; }
-
   // Returns true and stores first rectangle for character range if the
   // requested |range| is already cached, otherwise returns false.
   // Exposed for testing.
@@ -477,6 +472,16 @@ class CONTENT_EXPORT RenderWidgetHostViewMac
   // |TextInputState.type| which is not ui::TEXT_INPUT_TYPE_NONE.
   RenderWidgetHostImpl* GetActiveWidget();
 
+  // Returns the composition range information for the active RenderWidgetHost
+  // (accepting IME and keyboard input).
+  const TextInputManager::CompositionRangeInfo* GetCompositionRangeInfo();
+
+  // Returns the TextSelection information for the active widget. If
+  // |is_guest_view_hack_| is true, then it will return the TextSelection
+  // information for this RenderWidgetHostViewMac (which is serving as a
+  // platform view for a guest).
+  const TextInputManager::TextSelection* GetTextSelection();
+
  private:
   friend class RenderWidgetHostViewMacTest;
 
@@ -543,28 +548,12 @@ class CONTENT_EXPORT RenderWidgetHostViewMac
   base::TimeTicks vsync_timebase_;
   base::TimeDelta vsync_interval_;
 
-  // The current composition character range and its bounds.
-  gfx::Range composition_range_;
-  std::vector<gfx::Rect> composition_bounds_;
-
   // Whether a request for begin frames has been issued.
   bool needs_begin_frames_;
 
   // Whether a request to flush input has been issued.
   bool needs_flush_input_;
 
-  // TODO(ekaramad): Remove the following locals and get the selection
-  // information directly from TextInputManager.
-  // A buffer containing the text inside and around the current selection range.
-  base::string16 selection_text_;
-
-  // The offset of the text stored in |selection_text_| relative to the start of
-  // the web page.
-  size_t selection_text_offset_;
-
-  // The current selection range relative to the start of the web page.
-  gfx::Range selection_range_;
-
   // Factory used to safely scope delayed calls to ShutdownHost().
   base::WeakPtrFactory<RenderWidgetHostViewMac> weak_factory_;