Remove RWHV::SetBounds() from the public API, and make comments clearer.

content/browser/renderer_host/render_widget_host_view_android.h

Index: content/browser/renderer_host/render_widget_host_view_android.h
diff --git a/content/browser/renderer_host/render_widget_host_view_android.h b/content/browser/renderer_host/render_widget_host_view_android.h
index 050649192bf5c9d7e38583d13f5fe39236dbd315..53c041d59f6169eeb962daafe4d7ac858f3d23e0 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.h
+++ b/content/browser/renderer_host/render_widget_host_view_android.h
@@ -86,7 +86,6 @@ class CONTENT_EXPORT RenderWidgetHostViewAndroid
   void InitAsFullscreen(RenderWidgetHostView* reference_host_view) override;
   RenderWidgetHost* GetRenderWidgetHost() const override;
   void SetSize(const gfx::Size& size) override;
-  void SetBounds(const gfx::Rect& rect) override;
   gfx::Vector2dF GetLastScrollOffset() const override;
   gfx::NativeView GetNativeView() const override;
   gfx::NativeViewAccessible GetNativeViewAccessible() override;
@@ -99,6 +98,7 @@ class CONTENT_EXPORT RenderWidgetHostViewAndroid
   gfx::Rect GetViewBounds() const override;
   gfx::Size GetVisibleViewportSize() const override;
   gfx::Size GetPhysicalBackingSize() const override;
+  void RequestTopLevelBoundsInScreen(const gfx::Rect& rect) override;
   bool DoBrowserControlsShrinkBlinkSize() const override;
   float GetTopControlsHeight() const override;
   float GetBottomControlsHeight() const override;