Make LayerScrollOffsetDelegate updates consistent.

content/public/browser/android/synchronous_compositor_client.h

Index: content/public/browser/android/synchronous_compositor_client.h
diff --git a/content/public/browser/android/synchronous_compositor_client.h b/content/public/browser/android/synchronous_compositor_client.h
index 0abdebcf8aafb522917ea3bc7be6bb400a48a2d5..2247f3d9b981364b8b3fa082e8bff44bdd43eb3f 100644
--- a/content/public/browser/android/synchronous_compositor_client.h
+++ b/content/public/browser/android/synchronous_compositor_client.h
@@ -26,16 +26,14 @@ class SynchronousCompositorClient {
   virtual void DidDestroyCompositor(SynchronousCompositor* compositor) = 0;
 
   // See LayerScrollOffsetDelegate for details.
-  virtual void SetMaxRootLayerScrollOffset(
-      gfx::Vector2dF max_scroll_offset) = 0;
-  virtual void SetTotalRootLayerScrollOffset(gfx::Vector2dF new_value) = 0;
   virtual gfx::Vector2dF GetTotalRootLayerScrollOffset() = 0;
+  virtual void UpdateRootLayerState(const gfx::Vector2dF& total_scroll_offset,
+                                    const gfx::Vector2dF& max_scroll_offset,
+                                    const gfx::SizeF& scrollable_size,
+                                    float page_scale_factor,
+                                    float min_page_scale_factor,
+                                    float max_page_scale_factor) = 0;
   virtual bool IsExternalFlingActive() const = 0;
-  virtual void SetRootLayerPageScaleFactorAndLimits(
-      float page_scale_factor,
-      float min_page_scale_factor,
-      float max_page_scale_factor) = 0;
-  virtual void SetRootLayerScrollableSize(gfx::SizeF scrollable_size) = 0;
 
   virtual void DidOverscroll(gfx::Vector2dF accumulated_overscroll,
                              gfx::Vector2dF latest_overscroll_delta,