Backfill some UI tests.

content/test/test_render_view_host.h

Index: content/test/test_render_view_host.h
diff --git a/content/test/test_render_view_host.h b/content/test/test_render_view_host.h
index 9bbee7414f7423d21581dbee832ec0eddc195e40..87d536c0fcef4e650f1a78a5050ea02c807101ab 100644
--- a/content/test/test_render_view_host.h
+++ b/content/test/test_render_view_host.h
@@ -19,6 +19,8 @@
 #include "content/public/common/web_preferences.h"
 #include "content/public/test/mock_render_process_host.h"
 #include "content/public/test/test_renderer_host.h"
+#include "ui/aura/window.h"
+#include "ui/aura/window_delegate.h"
 #include "ui/base/ime/dummy_text_input_client.h"
 #include "ui/base/layout.h"
 #include "ui/base/page_transition_types.h"
@@ -56,12 +58,13 @@ void InitNavigateParams(FrameHostMsg_DidCommitProvisionalLoad_Params* params,
 
 // Subclass the RenderViewHost's view so that we can call Show(), etc.,
 // without having side-effects.
-class TestRenderWidgetHostView : public RenderWidgetHostViewBase {
+class TestRenderWidgetHostView : public RenderWidgetHostViewBase,
+                                 public aura::WindowDelegate {
  public:
   explicit TestRenderWidgetHostView(RenderWidgetHost* rwh);
   ~TestRenderWidgetHostView() override;
 
-  // RenderWidgetHostView implementation.
+  // RenderWidgetHostView:
   void InitAsChild(gfx::NativeView parent_view) override {}
   RenderWidgetHost* GetRenderWidgetHost() const override;
   void SetSize(const gfx::Size& size) override {}
@@ -96,7 +99,7 @@ class TestRenderWidgetHostView : public RenderWidgetHostViewBase {
   void ClearCompositorFrame() override {}
   void SetNeedsBeginFrames(bool needs_begin_frames) override {}
 
-  // RenderWidgetHostViewBase implementation.
+  // RenderWidgetHostViewBase:
   void InitAsPopup(RenderWidgetHostView* parent_host_view,
                    const gfx::Rect& bounds) override {}
   void InitAsFullscreen(RenderWidgetHostView* reference_host_view) override {}
@@ -113,6 +116,26 @@ class TestRenderWidgetHostView : public RenderWidgetHostViewBase {
   void UnlockMouse() override;
   cc::FrameSinkId GetFrameSinkId() override;
 
+  // aura::WindowDelegate:
+  gfx::Size GetMinimumSize() const override;
+  gfx::Size GetMaximumSize() const override;
+  void OnBoundsChanged(const gfx::Rect& old_bounds,
+                       const gfx::Rect& new_bounds) override {}
+  gfx::NativeCursor GetCursor(const gfx::Point& point) override;
+  int GetNonClientComponent(const gfx::Point& point) const override;
+  bool ShouldDescendIntoChildForEventHandling(
+      aura::Window* child,
+      const gfx::Point& location) override;
+  bool CanFocus() override;
+  void OnCaptureLost() override {}
+  void OnPaint(const ui::PaintContext& context) override {}
+  void OnDeviceScaleFactorChanged(float device_scale_factor) override {}
+  void OnWindowDestroying(aura::Window* window) override {}
+  void OnWindowDestroyed(aura::Window* window) override {}
+  void OnWindowTargetVisibilityChanged(bool visible) override {}
+  bool HasHitTestMask() const override;
+  void GetHitTestMask(gfx::Path* mask) const override;
+
   bool is_showing() const { return is_showing_; }
   bool is_occluded() const { return is_occluded_; }
   bool did_swap_compositor_frame() const { return did_swap_compositor_frame_; }
@@ -135,6 +158,7 @@ class TestRenderWidgetHostView : public RenderWidgetHostViewBase {
   bool did_change_compositor_frame_sink_ = false;
   SkColor background_color_;
   ui::DummyTextInputClient text_input_client_;
+  aura::Window* window_;
 };
 
 #if defined(COMPILER_MSVC)