Move WebAXObject.cpp to core/ (WIP)

third_party/WebKit/Source/modules/accessibility/AXMediaControls.h

Index: third_party/WebKit/Source/modules/accessibility/AXMediaControls.h
diff --git a/third_party/WebKit/Source/modules/accessibility/AXMediaControls.h b/third_party/WebKit/Source/modules/accessibility/AXMediaControls.h
index 353aec4406e261dac99a99e9a68b383577015f55..b7722be24e9aa86430e596e7fe3cc831b3cefa6f 100644
--- a/third_party/WebKit/Source/modules/accessibility/AXMediaControls.h
+++ b/third_party/WebKit/Source/modules/accessibility/AXMediaControls.h
@@ -53,7 +53,7 @@ class AccessibilityMediaControl : public AXLayoutObject {
                          NameSources*) const override;
   String Description(AXNameFrom,
                      AXDescriptionFrom&,
-                     AXObjectVector* description_objects) const override;
+                     AXObjectImplVector* description_objects) const override;
 
  protected:
   AccessibilityMediaControl(LayoutObject*, AXObjectCacheImpl&);
@@ -70,7 +70,7 @@ class AccessibilityMediaTimeline final : public AXSlider {
 
   String Description(AXNameFrom,
                      AXDescriptionFrom&,
-                     AXObjectVector* description_objects) const override;
+                     AXObjectImplVector* description_objects) const override;
   String ValueDescription() const override;
 
  private:
@@ -94,7 +94,7 @@ class AXMediaControlsContainer final : public AccessibilityMediaControl {
                          NameSources*) const override;
   String Description(AXNameFrom,
                      AXDescriptionFrom&,
-                     AXObjectVector* description_objects) const override;
+                     AXObjectImplVector* description_objects) const override;
 
  private:
   AXMediaControlsContainer(LayoutObject*, AXObjectCacheImpl&);