cc: Don't consider HUD layer for touches

cc/math_util.h

 // Copyright 2012 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_MATH_UTIL_H_
 #define CC_MATH_UTIL_H_
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/cc_export.h"
@@ skipping 101 matching lines @@
 
     static gfx::Vector2dF computeTransform2dScaleComponents(const gfx::Transform&, float fallbackValue);
 
     // Returns the smallest angle between the given two vectors in degrees. Neither vector is
     // assumed to be normalized.
     static float smallestAngleBetweenVectors(gfx::Vector2dF, gfx::Vector2dF);
 
     // Projects the |source| vector onto |destination|. Neither vector is assumed to be normalized.
     static gfx::Vector2dF projectVector(gfx::Vector2dF source, gfx::Vector2dF destination);
 
+    // Returns true if screen point hits a rect
+    static bool pointHitsRect(const gfx::PointF& screenSpacePoint, const gfx::Transform& localSpaceToScreenSpaceTransform, gfx::RectF localSpaceRect);
+
     // Conversion to value.
     static scoped_ptr<base::Value> asValue(gfx::Size s);
     static scoped_ptr<base::Value> asValue(gfx::PointF q);
     static scoped_ptr<base::Value> asValue(gfx::QuadF q);
 
     // Returns a base::Value representation of the floating point value.
     // If the value is inf, returns max double/float representation.
     static scoped_ptr<base::Value> asValueSafely(double value);
     static scoped_ptr<base::Value> asValueSafely(float value);
 
 };
 
 } // namespace cc
 
 #endif  // CC_MATH_UTIL_H_