Implement support for Mac Zoom following focus and caret

content/browser/renderer_host/text_input_manager.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/text_input_manager.h"
 
 #include "base/strings/string16.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 #include "content/common/view_messages.h"
@@ skipping 134 matching lines @@
 }
 
 void TextInputManager::SelectionBoundsChanged(
     RenderWidgetHostViewBase* view,
     const ViewHostMsg_SelectionBounds_Params& params) {
   DCHECK(IsRegistered(view));
   // Converting the anchor point to root's coordinate space (for child frame
   // views).
   gfx::Point anchor_origin_transformed =
       view->TransformPointToRootCoordSpace(params.anchor_rect.origin());
-#if defined(USE_AURA)
+
   gfx::SelectionBound anchor_bound, focus_bound;
 
   anchor_bound.SetEdge(gfx::PointF(anchor_origin_transformed),
                        gfx::PointF(view->TransformPointToRootCoordSpace(
                            params.anchor_rect.bottom_left())));
   focus_bound.SetEdge(gfx::PointF(view->TransformPointToRootCoordSpace(
                           params.focus_rect.origin())),
                       gfx::PointF(view->TransformPointToRootCoordSpace(
                           params.focus_rect.bottom_left())));
 
@@ skipping 19 matching lines @@
       focus_bound.set_type(gfx::SelectionBound::LEFT);
     }
   }
 
   if (anchor_bound == selection_region_map_[view].anchor &&
       focus_bound == selection_region_map_[view].focus)
     return;
 
   selection_region_map_[view].anchor = anchor_bound;
   selection_region_map_[view].focus = focus_bound;
-#else
+
   if (params.anchor_rect == params.focus_rect) {
     selection_region_map_[view].caret_rect.set_origin(
         anchor_origin_transformed);
     selection_region_map_[view].caret_rect.set_size(params.anchor_rect.size());
   }
   selection_region_map_[view].first_selection_rect.set_origin(
       anchor_origin_transformed);
   selection_region_map_[view].first_selection_rect.set_size(
       params.anchor_rect.size());
-#endif  // USE_AURA
+
   FOR_EACH_OBSERVER(Observer, observer_list_,
                     OnSelectionBoundsChanged(this, view));
 }
 
 // TODO(ekaramad): We use |range| only on Mac OS; but we still track its value
 // here for other platforms. See if there is a nice way around this with minimal
 // #ifdefs for platform specific code (https://crbug.com/602427).
 void TextInputManager::ImeCompositionRangeChanged(
     RenderWidgetHostViewBase* view,
     const gfx::Range& range,
@@ skipping 126 matching lines @@
                     "point exceeds text length).";
     return false;
   }
 
   selected_text->clear();
   selected_text->append(text.substr(pos, n));
   return true;
 }
 
 }  // namespace content