Migrate most of cc/ from WebKit::WebTransformationMatrix to gfx::Transform

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 "cc/font_atlas.h"
@@ skipping 716 matching lines @@
         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())
+    if (m_implTransform.IsIdentity())
         return zoomedViewportPoint;
 
-    DCHECK(m_implTransform.isInvertible());
+    DCHECK(m_implTransform.IsInvertible());
 
     // Scale to screen space before applying implTransform inverse.
     gfx::PointF zoomedScreenspacePoint = gfx::ScalePoint(zoomedViewportPoint, deviceScaleFactor());
-    WebKit::WebTransformationMatrix inverseImplTransform = m_implTransform.inverse();
+    gfx::Transform inverseImplTransform = MathUtil::inverse(m_implTransform);
 
     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 WebKit::WebTransformationMatrix& transform)
+void LayerTreeHost::setImplTransform(const gfx::Transform& transform)
 {
     m_implTransform = transform;
 }
 
 void LayerTreeHost::startRateLimiter(WebKit::WebGraphicsContext3D* context)
 {
     if (m_animating)
         return;
 
     DCHECK(context);
@@ skipping 89 matching lines @@
             else
                 layer->notifyAnimationFinished(wallClockTime.ToDoubleT());
         }
     }
 
     for (size_t childIndex = 0; childIndex < layer->children().size(); ++childIndex)
         setAnimationEventsRecursive(events, layer->children()[childIndex].get(), wallClockTime);
 }
 
 }  // namespace cc