Delete zoomed_viewport_offset_ and its users.

cc/layer_tree_host.cc

 // 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.
 
 #include "cc/layer_tree_host.h"
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/message_loop.h"
 #include "base/stl_util.h"
@@ skipping 734 matching lines @@
             continue;
         if (layer == rootScrollLayer)
             rootScrollDelta += info.scrolls[i].scrollDelta;
         else
             layer->setScrollOffset(layer->scrollOffset() + info.scrolls[i].scrollDelta);
     }
     if (!rootScrollDelta.IsZero() || info.pageScaleDelta != 1)
         m_client->applyScrollAndScale(rootScrollDelta, info.pageScaleDelta);
 }
 
-gfx::PointF LayerTreeHost::adjustEventPointForPinchZoom(const gfx::PointF& zoomedViewportPoint)
-    const
-{
-    if (m_implTransform.IsIdentity())
-        return zoomedViewportPoint;
-
-    DCHECK(m_implTransform.IsInvertible());
-
-    // Scale to screen space before applying implTransform inverse.
-    gfx::PointF zoomedScreenspacePoint = gfx::ScalePoint(zoomedViewportPoint, deviceScaleFactor());
-
-    gfx::Transform inverseImplTransform(gfx::Transform::kSkipInitialization);
-    if (!m_implTransform.GetInverse(&inverseImplTransform)) {
-        // TODO(shawnsingh): Either we need to handle uninvertible transforms
-        // here, or DCHECK that the transform is invertible.
-    }
-
-    bool wasClipped = false;
-    gfx::PointF unzoomedScreenspacePoint = MathUtil::projectPoint(inverseImplTransform, zoomedScreenspacePoint, wasClipped);
-    DCHECK(!wasClipped);
-
-    // Convert back to logical pixels for hit testing.
-    gfx::PointF unzoomedViewportPoint = gfx::ScalePoint(unzoomedScreenspacePoint, 1 / deviceScaleFactor());
-
-    return unzoomedViewportPoint;
-}
-
 void LayerTreeHost::setImplTransform(const gfx::Transform& transform)
 {
     m_implTransform = transform;
 }
 
 void LayerTreeHost::startRateLimiter(WebKit::WebGraphicsContext3D* context)
 {
     if (m_animating)
         return;
 
@@ skipping 85 matching lines @@
     for (size_t childIndex = 0; childIndex < layer->children().size(); ++childIndex)
         setAnimationEventsRecursive(events, layer->children()[childIndex].get(), wallClockTime);
 }
 
 skia::RefPtr<SkPicture> LayerTreeHost::capturePicture()
 {
     return m_proxy->capturePicture();
 }
 
 }  // namespace cc