Restore scrolloffset after exiting fullscreen.

android_webview/browser/browser_view_renderer.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_H_
 #define ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_H_
 
 #include <map>
 
 #include "android_webview/browser/parent_compositor_draw_constraints.h"
@@ skipping 89 matching lines @@
   void TrimMemory(const int level, const bool visible);
 
   // SynchronousCompositorClient overrides.
   void DidInitializeCompositor(
       content::SynchronousCompositor* compositor) override;
   void DidDestroyCompositor(
       content::SynchronousCompositor* compositor) override;
   void DidBecomeCurrent(content::SynchronousCompositor* compositor) override;
   void PostInvalidate() override;
   void DidUpdateContent() override;
-  void UpdateRootLayerState(const gfx::Vector2dF& total_scroll_offset_dip,
-                            const gfx::Vector2dF& max_scroll_offset_dip,
-                            const gfx::SizeF& scrollable_size_dip,
+  void UpdateRootLayerState(const gfx::Vector2dF& total_scroll_offset_css,
+                            const gfx::Vector2dF& max_scroll_offset_css,
+                            const gfx::SizeF& scrollable_size_css,
                             float page_scale_factor,
                             float min_page_scale_factor,
                             float max_page_scale_factor) override;
   void DidOverscroll(const gfx::Vector2dF& accumulated_overscroll,
                      const gfx::Vector2dF& latest_overscroll_delta,
                      const gfx::Vector2dF& current_fling_velocity) override;
 
   void UpdateParentDrawConstraints();
   void DetachFunctorFromView();
 
  private:
-  void SetTotalRootLayerScrollOffset(const gfx::Vector2dF& new_value_dip);
+  void SetTotalRootLayerScrollOffset(const gfx::Vector2dF& new_value_css);
   bool CanOnDraw();
   // Posts an invalidate with fallback tick. All invalidates posted while an
   // invalidate is pending will be posted as a single invalidate after the
   // pending invalidate is done.
   void PostInvalidateWithFallback();
   void CancelFallbackTick();
   void UpdateCompositorIsActive();
   bool CompositeSW(SkCanvas* canvas);
   scoped_refptr<base::trace_event::ConvertableToTraceFormat>
-  RootLayerStateAsValue(const gfx::Vector2dF& total_scroll_offset_dip,
-                        const gfx::SizeF& scrollable_size_dip);
+  RootLayerStateAsValue(const gfx::Vector2dF& total_scroll_offset_css,
+                        const gfx::SizeF& scrollable_size_css);
 
   bool CompositeHw();
   void ReturnUnusedResource(scoped_ptr<ChildFrame> frame);
   void ReturnResourceFromParent();
 
   // If we call up view invalidate and OnDraw is not called before a deadline,
   // then we keep ticking the SynchronousCompositor so it can make progress.
   // Do this in a two stage tick due to native MessageLoop favors delayed task,
   // so ensure delayed task is inserted only after the draw task returns.
   void PostFallbackTick();
@@ skipping 41 matching lines @@
 
   gfx::Vector2d last_on_draw_scroll_offset_;
   gfx::Rect last_on_draw_global_visible_rect_;
 
   base::CancelableClosure post_fallback_tick_;
   base::CancelableClosure fallback_tick_fired_;
   bool fallback_tick_pending_;
 
   gfx::Size size_;
 
-  gfx::SizeF scrollable_size_dip_;
+  gfx::SizeF scrollable_size_css_;
 
   // Current scroll offset in CSS pixels.
-  // TODO(miletus): Make scroll_offset_dip_ a gfx::ScrollOffset.
-  gfx::Vector2dF scroll_offset_dip_;
+  // TODO(miletus): Make scroll_offset_css_ a gfx::ScrollOffset.
+  gfx::Vector2dF scroll_offset_css_;
 
   // Max scroll offset in CSS pixels.
-  // TODO(miletus): Make max_scroll_offset_dip_ a gfx::ScrollOffset.
-  gfx::Vector2dF max_scroll_offset_dip_;
+  // TODO(miletus): Make max_scroll_offset_css_ a gfx::ScrollOffset.
+  gfx::Vector2dF max_scroll_offset_css_;
 
   // Used to prevent rounding errors from accumulating enough to generate
   // visible skew (especially noticeable when scrolling up and down in the same
   // spot over a period of time).
   // TODO(miletus): Make overscroll_rounding_error_ a gfx::ScrollOffset.
   gfx::Vector2dF overscroll_rounding_error_;
 
   unsigned int next_compositor_id_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserViewRenderer);
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_H_