Delete zoomed_viewport_offset_ and its users.

cc/layer_tree_host.h

 // Copyright 2011 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 CC_LAYER_TREE_HOST_H_
 #define CC_LAYER_TREE_HOST_H_
 
 #include <limits>
 
 #include "base/basictypes.h"
@@ skipping 158 matching lines @@
     void setHasTransparentBackground(bool transparent) { m_hasTransparentBackground = transparent; }
 
     PrioritizedResourceManager* contentsTextureManager() const;
 
     bool visible() const { return m_visible; }
     void setVisible(bool);
 
     void startPageScaleAnimation(gfx::Vector2d targetOffset, bool useAnchor, float scale, base::TimeDelta duration);
 
     void applyScrollAndScale(const ScrollAndScaleSet&);
-    // This function converts event coordinates when the deviceViewport is zoomed.
-    // Coordinates are transformed from logical pixels in the zoomed viewport to
-    // logical pixels in the un-zoomed viewport, the latter being the coordinates
-    // required for hit-testing.
-    gfx::PointF adjustEventPointForPinchZoom(const gfx::PointF& zoomedViewportPoint) const;
     void setImplTransform(const gfx::Transform&);
 
     void startRateLimiter(WebKit::WebGraphicsContext3D*);
     void stopRateLimiter(WebKit::WebGraphicsContext3D*);
 
     // RateLimitClient implementation
     virtual void rateLimit() OVERRIDE;
 
     bool bufferedUpdates();
     bool requestPartialTextureUpdate();
@@ skipping 85 matching lines @@
     scoped_ptr<AnimationRegistrar> m_animationRegistrar;
 
     static bool s_needsFilterContext;
 
     DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYER_TREE_HOST_H_