workspace: Rename a function and update its header comment

WorkspaceEventHandler::HandleVerticalResizeDoubleClick actually handles
both horizontal resize double clicking and vertical resize double
clicking. The name and header comment both say it is only for vertical.

Bug: None
Change-Id: I756a951ae86e0f3cf094fd889a1973c85fe63442
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1950854Reviewed-by: Xiaoqian Dai <xdai@chromium.org>
Commit-Queue: Avery Musbach <amusbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#721527}

ash/wm/workspace/workspace_event_handler.cc

@@ -73,7 +73,7 @@ void WorkspaceEventHandler::OnMouseEvent(ui::MouseEvent* event) {
         click_component_ = HTNOWHERE;
       }
 
-      HandleVerticalResizeDoubleClick(target_state, event);
+      HandleResizeDoubleClick(target_state, event);
       break;
     }
     default:
@@ -109,9 +109,8 @@ void WorkspaceEventHandler::OnGestureEvent(ui::GestureEvent* event) {
   click_component_ = HTNOWHERE;
 }
 
-void WorkspaceEventHandler::HandleVerticalResizeDoubleClick(
-    WindowState* target_state,
-    ui::MouseEvent* event) {
+void WorkspaceEventHandler::HandleResizeDoubleClick(WindowState* target_state,
+                                                    ui::MouseEvent* event) {
   aura::Window* target = target_state->window();
   if ((event->flags() & ui::EF_IS_DOUBLE_CLICK) != 0 && target->delegate()) {
     const int component =

ash/wm/workspace/workspace_event_handler.h

@@ -38,12 +38,13 @@ class ASH_EXPORT WorkspaceEventHandler : public ui::EventHandler {
  private:
   friend class WorkspaceEventHandlerTestHelper;
 
-  // Determines if |event| corresponds to a double click on either the top or
-  // bottom vertical resize edge, and if so toggles the vertical height of the
-  // window between its restored state and the full available height of the
-  // workspace.
-  void HandleVerticalResizeDoubleClick(WindowState* window_state,
-                                       ui::MouseEvent* event);
+  // Determines if |event| corresponds to a double click on a resize edge, and
+  // if so toggles the width/height of the window (width when the left or right
+  // edge is double clicked, height when the top or bottom edge is double
+  // clicked) between its restored state and the full available width/height of
+  // the workspace.
+  void HandleResizeDoubleClick(WindowState* window_state,
+                               ui::MouseEvent* event);
 
   aura::Window* workspace_window_;