move webkit/glue/fling_* to webkit/child

A little bit of rejiggering for Android JNI registration.

R=jam@chromium.org, jamesr@chromium.org
BUG=237249

Review URL: https://codereview.chromium.org/16424008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@206148 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 58 insertions, 0 deletions

diff --git a/webkit/child/fling_curve_configuration.h b/webkit/child/fling_curve_configuration.h
new file mode 100644
index 0000000..2ce5ba1
--- /dev/null
+++ b/webkit/child/fling_curve_configuration.h
@@ -0,0 +1,58 @@
+// 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 WEBKIT_CHILD_FLING_CURVE_CONFIGURATION_H_
+#define WEBKIT_CHILD_FLING_CURVE_CONFIGURATION_H_
+
+#include <vector>
+
+#include "base/synchronization/lock.h"
+#include "third_party/WebKit/public/platform/WebFloatPoint.h"
+#include "third_party/WebKit/public/platform/WebSize.h"
+
+namespace WebKit {
+class WebGestureCurve;
+}
+
+namespace webkit_glue {
+
+// A class to manage dynamically adjustable parameters controlling the
+// shape of the fling deacceleration function.
+class FlingCurveConfiguration {
+ public:
+  FlingCurveConfiguration();
+  virtual ~FlingCurveConfiguration();
+
+  // Create a touchpad fling curve using the current parameters.
+  WebKit::WebGestureCurve* CreateForTouchPad(
+      const WebKit::WebFloatPoint& velocity,
+      const WebKit::WebSize& cumulativeScroll);
+
+  // Create a touchscreen fling curve using the current parameters.
+  WebKit::WebGestureCurve* CreateForTouchScreen(
+      const WebKit::WebFloatPoint& velocity,
+      const WebKit::WebSize& cumulativeScroll);
+
+  // Set the curve parameters.
+  void SetCurveParameters(
+      const std::vector<float>& new_touchpad,
+      const std::vector<float>& new_touchscreen);
+
+ private:
+  WebKit::WebGestureCurve* CreateCore(
+    const std::vector<float>& coefs,
+    const WebKit::WebFloatPoint& velocity,
+    const WebKit::WebSize& cumulativeScroll);
+
+  // Protect access to touchpad_coefs_ and touchscreen_coefs_.
+  base::Lock lock_;
+  std::vector<float> touchpad_coefs_;
+  std::vector<float> touchscreen_coefs_;
+
+  DISALLOW_COPY_AND_ASSIGN(FlingCurveConfiguration);
+};
+
+} // namespace webkit_glue
+
+#endif // WEBKIT_CHILD_FLING_CURVE_CONFIGURATION_H_