[Android] Adding Smart GO/NEXT feature in Chrome

third_party/WebKit/public/web/WebFrame.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebFrame_h
 #define WebFrame_h
 
+#include "../platform/WebFocusType.h"
 #include "WebIconURL.h"
 #include "WebNode.h"
 #include "public/platform/WebCanvas.h"
 #include "public/platform/WebInsecureRequestPolicy.h"
 #include "public/web/WebFrameLoadType.h"
 #include "public/web/WebTreeScopeType.h"
 #include <memory>
 
 namespace v8 {
 class Context;
@@ skipping 369 matching lines @@
   // Dumps the layer tree, used by the accelerated compositor, in
   // text form. This is used only by layout tests.
   virtual WebString layerTreeAsText(bool showDebugInfo = false) const = 0;
 
   virtual WebFrameImplBase* toImplBase() = 0;
   // TODO(dcheng): Fix const-correctness issues and remove this overload.
   virtual const WebFrameImplBase* toImplBase() const {
     return const_cast<WebFrame*>(this)->toImplBase();
   }
 
+  // Advance the focus of the WebView to next text input element from current
+  // input field wrt sequential navigation with TAB or Shift + TAB
+  // WebFocusTypeForward simulates TAB and WebFocusTypeBackward simulates
+  // Shift + TAB. (Will be extended to other form Controls like Select element
+  // , Checkbox, Radio etc.)
+  virtual void advanceFocusInForm(WebFocusType) = 0;

[EhsanK, 2017/04/26 21:31:59]

I suggest removing this to WebLocalFrame. I don't think it makes much sense to
have the WebRemoteFrame version of the method. Besides, you only send the IPC to
RenderFrameImpl so the WebFrame variant never really gets called anyway.

[AKVT, 2017/04/27 15:07:02]

Done.

+
   // Returns the frame inside a given frame or iframe element. Returns 0 if
   // the given element is not a frame, iframe or if the frame is empty.
   BLINK_EXPORT static WebFrame* fromFrameOwnerElement(const WebElement&);
 
 #if BLINK_IMPLEMENTATION
   static WebFrame* fromFrame(Frame*);
 
   bool inShadowTree() const { return m_scope == WebTreeScopeType::Shadow; }
 
   static void traceFrames(Visitor*, WebFrame*);
@@ skipping 25 matching lines @@
   WebFrame* m_firstChild;
   WebFrame* m_lastChild;
 
   WebFrame* m_opener;
   std::unique_ptr<OpenedFrameTracker> m_openedFrameTracker;
 };
 
 }  // namespace blink
 
 #endif