diff --git a/shell/browser/osr/osr_render_widget_host_view.cc b/shell/browser/osr/osr_render_widget_host_view.cc
index db17e48457..6b62ae3c5a 100644
--- a/shell/browser/osr/osr_render_widget_host_view.cc
+++ b/shell/browser/osr/osr_render_widget_host_view.cc
@@ -306,8 +306,6 @@ ui::TextInputClient* OffScreenRenderWidgetHostView::GetTextInputClient() {
   return nullptr;
 }
 
-void OffScreenRenderWidgetHostView::Focus() {}
-
 bool OffScreenRenderWidgetHostView::HasFocus() {
   return false;
 }
@@ -377,14 +375,10 @@ std::optional<SkColor> OffScreenRenderWidgetHostView::GetBackgroundColor() {
   return background_color_;
 }
 
-void OffScreenRenderWidgetHostView::UpdateBackgroundColor() {}
-
 gfx::Size OffScreenRenderWidgetHostView::GetVisibleViewportSize() {
   return size_;
 }
 
-void OffScreenRenderWidgetHostView::SetInsets(const gfx::Insets& insets) {}
-
 blink::mojom::PointerLockResult OffScreenRenderWidgetHostView::LockPointer(
     bool request_unadjusted_movement) {
   return blink::mojom::PointerLockResult::kUnsupportedOptions;
@@ -396,8 +390,6 @@ OffScreenRenderWidgetHostView::ChangePointerLock(
   return blink::mojom::PointerLockResult::kUnsupportedOptions;
 }
 
-void OffScreenRenderWidgetHostView::UnlockPointer() {}
-
 void OffScreenRenderWidgetHostView::TakeFallbackContentFrom(
     content::RenderWidgetHostView* view) {
   DCHECK(!static_cast<content::RenderWidgetHostViewBase*>(view)
@@ -447,19 +439,10 @@ void OffScreenRenderWidgetHostView::InitAsPopup(
   Show();
 }
 
-void OffScreenRenderWidgetHostView::UpdateCursor(const ui::Cursor&) {}
-
 input::CursorManager* OffScreenRenderWidgetHostView::GetCursorManager() {
   return cursor_manager_.get();
 }
 
-void OffScreenRenderWidgetHostView::SetIsLoading(bool loading) {}
-
-void OffScreenRenderWidgetHostView::TextInputStateChanged(
-    const ui::mojom::TextInputState& params) {}
-
-void OffScreenRenderWidgetHostView::ImeCancelComposition() {}
-
 void OffScreenRenderWidgetHostView::RenderProcessGone() {
   Destroy();
 }
@@ -492,9 +475,6 @@ void OffScreenRenderWidgetHostView::Destroy() {
   delete this;
 }
 
-void OffScreenRenderWidgetHostView::UpdateTooltipUnderCursor(
-    const std::u16string&) {}
-
 uint32_t OffScreenRenderWidgetHostView::GetCaptureSequenceNumber() const {
   return latest_capture_sequence_number_;
 }
@@ -520,9 +500,6 @@ display::ScreenInfo OffScreenRenderWidgetHostView::GetScreenInfo() const {
   return screen_info;
 }
 
-void OffScreenRenderWidgetHostView::TransformPointToRootSurface(
-    gfx::PointF* point) {}
-
 gfx::Rect OffScreenRenderWidgetHostView::GetBoundsInRootWindow() {
   return gfx::Rect(size_);
 }
@@ -532,9 +509,6 @@ OffScreenRenderWidgetHostView::GetDisplayFeature() {
   return std::nullopt;
 }
 
-void OffScreenRenderWidgetHostView::SetDisplayFeatureForTesting(
-    const content::DisplayFeature* display_feature) {}
-
 viz::SurfaceId OffScreenRenderWidgetHostView::GetCurrentSurfaceId() const {
   return delegated_frame_host() ? delegated_frame_host()->GetCurrentSurfaceId()
                                 : viz::SurfaceId();
@@ -546,11 +520,6 @@ OffScreenRenderWidgetHostView::CreateSyntheticGestureTarget() {
   return nullptr;
 }
 
-void OffScreenRenderWidgetHostView::ImeCompositionRangeChanged(
-    const gfx::Range&,
-    const std::optional<std::vector<gfx::Rect>>& character_bounds,
-    const std::optional<std::vector<gfx::Rect>>& line_bounds) {}
-
 gfx::Size OffScreenRenderWidgetHostView::GetCompositorViewportPixelSize() {
   return gfx::ScaleToCeiledSize(GetRequestedRendererSize(),
                                 GetDeviceScaleFactor());
@@ -676,22 +645,6 @@ bool OffScreenRenderWidgetHostView::InstallTransparency() {
 }
 
 #if BUILDFLAG(IS_MAC)
-void OffScreenRenderWidgetHostView::SetActive(bool active) {}
-
-void OffScreenRenderWidgetHostView::ShowDefinitionForSelection() {}
-
-void OffScreenRenderWidgetHostView::SpeakSelection() {}
-
-void OffScreenRenderWidgetHostView::SetWindowFrameInScreen(
-    const gfx::Rect& rect) {}
-
-void OffScreenRenderWidgetHostView::ShowSharePicker(
-    const std::string& title,
-    const std::string& text,
-    const std::string& url,
-    const std::vector<std::string>& file_paths,
-    blink::mojom::ShareService::ShareCallback callback) {}
-
 bool OffScreenRenderWidgetHostView::UpdateNSViewAndDisplay() {
   return false;
 }
diff --git a/shell/browser/osr/osr_render_widget_host_view.h b/shell/browser/osr/osr_render_widget_host_view.h
index 2c3d74e738..ec63862c06 100644
--- a/shell/browser/osr/osr_render_widget_host_view.h
+++ b/shell/browser/osr/osr_render_widget_host_view.h
@@ -90,8 +90,8 @@ class OffScreenRenderWidgetHostView
   gfx::NativeView GetNativeView(void) override;
   gfx::NativeViewAccessible GetNativeViewAccessible(void) override;
   ui::TextInputClient* GetTextInputClient() override;
-  void Focus(void) override;
-  bool HasFocus(void) override;
+  void Focus() override {}
+  bool HasFocus() override;
   uint32_t GetCaptureSequenceNumber() const override;
   bool IsSurfaceAvailableForCopy(void) override;
   void Hide(void) override;
@@ -99,27 +99,27 @@ class OffScreenRenderWidgetHostView
   void EnsureSurfaceSynchronizedForWebTest() override;
   gfx::Rect GetViewBounds(void) override;
   gfx::Size GetVisibleViewportSize() override;
-  void SetInsets(const gfx::Insets&) override;
+  void SetInsets(const gfx::Insets&) override {}
   void SetBackgroundColor(SkColor color) override;
   std::optional<SkColor> GetBackgroundColor() override;
-  void UpdateBackgroundColor() override;
+  void UpdateBackgroundColor() override {}
   blink::mojom::PointerLockResult LockPointer(
       bool request_unadjusted_movement) override;
   blink::mojom::PointerLockResult ChangePointerLock(
       bool request_unadjusted_movement) override;
-  void UnlockPointer(void) override;
+  void UnlockPointer(void) override {}
   void TakeFallbackContentFrom(content::RenderWidgetHostView* view) override;
 #if BUILDFLAG(IS_MAC)
-  void SetActive(bool active) override;
-  void ShowDefinitionForSelection() override;
-  void SpeakSelection() override;
-  void SetWindowFrameInScreen(const gfx::Rect& rect) override;
+  void SetActive(bool active) override {}
+  void ShowDefinitionForSelection() override {}
+  void SpeakSelection() override {}
+  void SetWindowFrameInScreen(const gfx::Rect& rect) override {}
   void ShowSharePicker(
       const std::string& title,
       const std::string& text,
       const std::string& url,
       const std::vector<std::string>& file_paths,
-      blink::mojom::ShareService::ShareCallback callback) override;
+      blink::mojom::ShareService::ShareCallback callback) override {}
   uint64_t GetNSViewId() const override;
   bool UpdateNSViewAndDisplay();
 #endif  // BUILDFLAG(IS_MAC)
@@ -131,25 +131,26 @@ class OffScreenRenderWidgetHostView
   void InitAsPopup(content::RenderWidgetHostView* parent_host_view,
                    const gfx::Rect& bounds,
                    const gfx::Rect& anchor_rect) override;
-  void UpdateCursor(const ui::Cursor&) override;
-  void SetIsLoading(bool is_loading) override;
-  void TextInputStateChanged(const ui::mojom::TextInputState& params) override;
-  void ImeCancelComposition(void) override;
+  void UpdateCursor(const ui::Cursor&) override {}
+  void SetIsLoading(bool is_loading) override {}
+  void TextInputStateChanged(const ui::mojom::TextInputState& params) override {
+  }
+  void ImeCancelComposition(void) override {}
   void RenderProcessGone() override;
   void ShowWithVisibility(content::PageVisibilityState page_visibility) final;
   void Destroy(void) override;
-  void UpdateTooltipUnderCursor(const std::u16string&) override;
+  void UpdateTooltipUnderCursor(const std::u16string&) override {}
   input::CursorManager* GetCursorManager() override;
   void CopyFromSurface(
       const gfx::Rect& src_rect,
       const gfx::Size& output_size,
       base::OnceCallback<void(const SkBitmap&)> callback) override;
   display::ScreenInfo GetScreenInfo() const override;
-  void TransformPointToRootSurface(gfx::PointF* point) override;
+  void TransformPointToRootSurface(gfx::PointF* point) override {}
   gfx::Rect GetBoundsInRootWindow(void) override;
   std::optional<content::DisplayFeature> GetDisplayFeature() override;
   void SetDisplayFeatureForTesting(
-      const content::DisplayFeature* display_feature) override;
+      const content::DisplayFeature* display_feature) override {}
   void NotifyHostAndDelegateOnWasShown(
       blink::mojom::RecordContentToVisibleTimeRequestPtr) final;
   void RequestSuccessfulPresentationTimeFromHostOrDelegate(
@@ -161,7 +162,7 @@ class OffScreenRenderWidgetHostView
   void ImeCompositionRangeChanged(
       const gfx::Range&,
       const std::optional<std::vector<gfx::Rect>>& character_bounds,
-      const std::optional<std::vector<gfx::Rect>>& line_bounds) override;
+      const std::optional<std::vector<gfx::Rect>>& line_bounds) override {}
   gfx::Size GetCompositorViewportPixelSize() override;
   ui::Compositor* GetCompositor() override;