Remove a bunch of unused frameHost() methods

third_party/WebKit/Source/core/input/GestureManager.cpp

Index: third_party/WebKit/Source/core/input/GestureManager.cpp
diff --git a/third_party/WebKit/Source/core/input/GestureManager.cpp b/third_party/WebKit/Source/core/input/GestureManager.cpp
index 4b4617dacce1e998af2d3dedfd30053f68a872fb..8cdaaaa95f78415d88032c251967c157947898c9 100644
--- a/third_party/WebKit/Source/core/input/GestureManager.cpp
+++ b/third_party/WebKit/Source/core/input/GestureManager.cpp
@@ -8,7 +8,6 @@
 #include "core/dom/DocumentUserGestureToken.h"
 #include "core/editing/SelectionController.h"
 #include "core/events/GestureEvent.h"
-#include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/Settings.h"
 #include "core/frame/VisualViewport.h"
@@ -426,13 +425,6 @@ WebInputEventResult GestureManager::handleGestureShowPress() {
   return WebInputEventResult::NotHandled;
 }
 
-FrameHost* GestureManager::frameHost() const {
-  if (!m_frame->page())
-    return nullptr;
-
-  return &m_frame->page()->frameHost();
-}
-
 WTF::Optional<WTF::TimeTicks> GestureManager::getLastShowPressTimestamp()
     const {
   return m_lastShowPressTimestamp;