Create a minimal webkit_common static library for use in browser process

Source/core/platform/chromium/support/WebFilterOperations.cpp

Index: Source/core/platform/chromium/support/WebFilterOperations.cpp
diff --git a/Source/core/platform/chromium/support/WebFilterOperations.cpp b/Source/core/platform/chromium/support/WebFilterOperations.cpp
deleted file mode 100644
index 223caf3a7aac4f51080a2bd3697a0fae4cd82421..0000000000000000000000000000000000000000
--- a/Source/core/platform/chromium/support/WebFilterOperations.cpp
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
- * Copyright (C) 2012 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1.  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- * 2.  Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-
-#include <cmath>
-#include "public/platform/WebFilterOperation.h"
-#include "public/platform/WebFilterOperations.h"
-#include <wtf/Vector.h>
-
-namespace WebKit {
-
-class WebFilterOperationsPrivate {
-public:
-    Vector<WebFilterOperation> operations;
-};
-
-
-void WebFilterOperations::initialize()
-{
-    m_private.reset(new WebFilterOperationsPrivate);
-}
-
-void WebFilterOperations::destroy()
-{
-    m_private.reset(0);
-}
-
-void WebFilterOperations::assign(const WebFilterOperations& other)
-{
-    m_private->operations = other.m_private->operations;
-}
-
-bool WebFilterOperations::equals(const WebFilterOperations& other) const
-{
-    if (other.size() != size())
-        return false;
-    for (size_t i = 0; i < m_private->operations.size(); ++i) {
-        if (other.at(i) != at(i))
-            return false;
-    }
-    return true;
-}
-
-void WebFilterOperations::append(const WebFilterOperation& filter)
-{
-    m_private->operations.append(filter);
-}
-
-void WebFilterOperations::clear()
-{
-    m_private->operations.clear();
-}
-
-bool WebFilterOperations::isEmpty() const
-{
-    return m_private->operations.isEmpty();
-}
-
-static int spreadForStdDeviation(float stdDeviation)
-{
-    // https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html#feGaussianBlurElement provides this approximation for
-    // evaluating a gaussian blur by a triple box filter.
-    float d = floorf(stdDeviation * 3 * sqrt(8.f * atan(1.f)) / 4 + 0.5);
-    return static_cast<int>(ceilf(d * 3 / 2));
-}
-
-void WebFilterOperations::getOutsets(int& top, int& right, int& bottom, int& left) const
-{
-    top = right = bottom = left = 0;
-    for (size_t i = 0; i < m_private->operations.size(); ++i) {
-        const WebFilterOperation op = m_private->operations[i];
-        if (op.type() == WebFilterOperation::FilterTypeBlur || op.type() == WebFilterOperation::FilterTypeDropShadow) {
-            int spread = spreadForStdDeviation(op.amount());
-            if (op.type() == WebFilterOperation::FilterTypeBlur) {
-                top += spread;
-                right += spread;
-                bottom += spread;
-                left += spread;
-            } else {
-                top += spread - op.dropShadowOffset().y;
-                right += spread + op.dropShadowOffset().x;
-                bottom += spread + op.dropShadowOffset().y;
-                left += spread - op.dropShadowOffset().x;
-            }
-        }
-    }
-}
-
-bool WebFilterOperations::hasFilterThatMovesPixels() const
-{
-    for (size_t i = 0; i < m_private->operations.size(); ++i) {
-        const WebFilterOperation op = m_private->operations[i];
-        switch (op.type()) {
-        case WebFilterOperation::FilterTypeBlur:
-        case WebFilterOperation::FilterTypeDropShadow:
-        case WebFilterOperation::FilterTypeZoom:
-            return true;
-        default:
-            break;
-        }
-    }
-    return false;
-}
-
-bool WebFilterOperations::hasFilterThatAffectsOpacity() const
-{
-    for (size_t i = 0; i < m_private->operations.size(); ++i) {
-        const WebFilterOperation op = m_private->operations[i];
-        switch (op.type()) {
-        case WebFilterOperation::FilterTypeOpacity:
-        case WebFilterOperation::FilterTypeBlur:
-        case WebFilterOperation::FilterTypeDropShadow:
-        case WebFilterOperation::FilterTypeZoom:
-            return true;
-        case WebFilterOperation::FilterTypeColorMatrix: {
-            const SkScalar* matrix = op.matrix();
-            return matrix[15]
-                || matrix[16]
-                || matrix[17]
-                || matrix[18] != 1
-                || matrix[19];
-        }
-        default:
-            break;
-        }
-    }
-    return false;
-}
-
-size_t WebFilterOperations::size() const
-{
-    return m_private->operations.size();
-}
-
-WebFilterOperation WebFilterOperations::at(size_t i) const
-{
-    return m_private->operations.at(i);
-}
-
-} // namespace WebKit