Relanding [Android] Adding Smart GO/NEXT feature in Chrome

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index f64d82ae5c7f0dc10fea0bf9aba922faa99c89f3..a937fc27d256245a397e6a088865f012a92cee7a 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -176,6 +176,7 @@
 #include "third_party/WebKit/public/platform/URLConversion.h"
 #include "third_party/WebKit/public/platform/WebCachePolicy.h"
 #include "third_party/WebKit/public/platform/WebData.h"
+#include "third_party/WebKit/public/platform/WebFocusType.h"
 #include "third_party/WebKit/public/platform/WebKeyboardEvent.h"
 #include "third_party/WebKit/public/platform/WebMediaPlayer.h"
 #include "third_party/WebKit/public/platform/WebMediaPlayerSource.h"
@@ -1644,6 +1645,7 @@ bool RenderFrameImpl::OnMessageReceived(const IPC::Message& msg) {
     IPC_MESSAGE_HANDLER(FrameMsg_SetFrameOwnerProperties,
                         OnSetFrameOwnerProperties)
     IPC_MESSAGE_HANDLER(FrameMsg_AdvanceFocus, OnAdvanceFocus)
+    IPC_MESSAGE_HANDLER(FrameMsg_AdvanceFocusInForm, OnAdvanceFocusInForm)
     IPC_MESSAGE_HANDLER(FrameMsg_SetFocusedFrame, OnSetFocusedFrame)
     IPC_MESSAGE_HANDLER(FrameMsg_SetTextTrackSettings,
                         OnTextTrackSettingsChanged)
@@ -2274,6 +2276,12 @@ void RenderFrameImpl::OnAdvanceFocus(blink::WebFocusType type,
       type, source_frame->web_frame(), frame_);
 }
 
+void RenderFrameImpl::OnAdvanceFocusInForm(blink::WebFocusType focus_type) {
+  if (render_view_->webview()->FocusedFrame() != frame_)
+    return;
+  frame_->AdvanceFocusInForm(focus_type);
+}
+
 void RenderFrameImpl::OnSetFocusedFrame() {
   // This uses focusDocumentView rather than setFocusedFrame so that focus/blur
   // events are properly dispatched on any currently focused elements.