Removing "using" declarations that import names in the C++ Standard library.

Source/core/frame/ImageBitmap.cpp

 // Copyright 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.
 
 #include "config.h"
 #include "core/frame/ImageBitmap.h"
 
 #include "core/html/HTMLCanvasElement.h"
 #include "core/html/HTMLVideoElement.h"
 #include "core/html/ImageData.h"
 #include "core/html/canvas/CanvasRenderingContext.h"
 #include "platform/graphics/BitmapImage.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/ImageBuffer.h"
 #include "wtf/RefPtr.h"
 
-using namespace std;
-
 namespace WebCore {
 
 static inline IntRect normalizeRect(const IntRect& rect)
 {
-    return IntRect(min(rect.x(), rect.maxX()),
-        min(rect.y(), rect.maxY()),
-        max(rect.width(), -rect.width()),
-        max(rect.height(), -rect.height()));
+    return IntRect(std::min(rect.x(), rect.maxX()),
+        std::min(rect.y(), rect.maxY()),
+        std::max(rect.width(), -rect.width()),
+        std::max(rect.height(), -rect.height()));
 }
 
 static inline PassRefPtr<Image> cropImage(Image* image, const IntRect& cropRect)
 {
     IntRect intersectRect = intersection(IntRect(IntPoint(), image->size()), cropRect);
     if (!intersectRect.width() || !intersectRect.height())
         return nullptr;
 
     SkBitmap cropped;
     image->nativeImageForCurrentFrame()->bitmap().extractSubset(&cropped, intersectRect);
     return BitmapImage::create(NativeImageSkia::create(cropped));
 }
 
 ImageBitmap::ImageBitmap(HTMLImageElement* image, const IntRect& cropRect)
     : m_imageElement(image)
     , m_bitmap(nullptr)
     , m_cropRect(cropRect)
 {
     IntRect srcRect = intersection(cropRect, IntRect(0, 0, image->width(), image->height()));
-    m_bitmapRect = IntRect(IntPoint(max(0, -cropRect.x()), max(0, -cropRect.y())), srcRect.size());
+    m_bitmapRect = IntRect(IntPoint(std::max(0, -cropRect.x()), std::max(0, -cropRect.y())), srcRect.size());
     m_bitmapOffset = srcRect.location();
 
     if (!srcRect.width() || !srcRect.height())
         m_imageElement = nullptr;
     else
         m_imageElement->addClient(this);
 
     ScriptWrappable::init(this);
 }
 
@@ skipping 12 matching lines @@
     IntRect dstRect(IntPoint(), srcRect.size());
 
     OwnPtr<ImageBuffer> buf = ImageBuffer::create(videoRect.size());
     if (!buf)
         return;
     GraphicsContext* c = buf->context();
     c->clip(dstRect);
     c->translate(-srcRect.x(), -srcRect.y());
     video->paintCurrentFrameInContext(c, videoRect);
     m_bitmap = buf->copyImage(DontCopyBackingStore);
-    m_bitmapRect = IntRect(IntPoint(max(0, -cropRect.x()), max(0, -cropRect.y())), srcRect.size());
+    m_bitmapRect = IntRect(IntPoint(std::max(0, -cropRect.x()), std::max(0, -cropRect.y())), srcRect.size());
 
     ScriptWrappable::init(this);
 }
 
 ImageBitmap::ImageBitmap(HTMLCanvasElement* canvas, const IntRect& cropRect)
     : m_imageElement(nullptr)
     , m_cropRect(cropRect)
     , m_bitmapOffset(IntPoint())
 {
     CanvasRenderingContext* sourceContext = canvas->renderingContext();
     if (sourceContext && sourceContext->is3d())
         sourceContext->paintRenderingResultsToCanvas();
 
     IntRect srcRect = intersection(cropRect, IntRect(IntPoint(), canvas->size()));
-    m_bitmapRect = IntRect(IntPoint(max(0, -cropRect.x()), max(0, -cropRect.y())), srcRect.size());
+    m_bitmapRect = IntRect(IntPoint(std::max(0, -cropRect.x()), std::max(0, -cropRect.y())), srcRect.size());
     m_bitmap = cropImage(canvas->buffer()->copyImage(CopyBackingStore).get(), cropRect);
 
     ScriptWrappable::init(this);
 }
 
 ImageBitmap::ImageBitmap(ImageData* data, const IntRect& cropRect)
     : m_imageElement(nullptr)
     , m_cropRect(cropRect)
     , m_bitmapOffset(IntPoint())
 {
     IntRect srcRect = intersection(cropRect, IntRect(IntPoint(), data->size()));
 
     OwnPtr<ImageBuffer> buf = ImageBuffer::create(data->size());
     if (!buf)
         return;
     if (srcRect.width() > 0 && srcRect.height() > 0)
-        buf->putByteArray(Premultiplied, data->data(), data->size(), srcRect, IntPoint(min(0, -cropRect.x()), min(0, -cropRect.y())));
+        buf->putByteArray(Premultiplied, data->data(), data->size(), srcRect, IntPoint(std::min(0, -cropRect.x()), std::min(0, -cropRect.y())));
 
     m_bitmap = buf->copyImage(DontCopyBackingStore);
-    m_bitmapRect = IntRect(IntPoint(max(0, -cropRect.x()), max(0, -cropRect.y())),  srcRect.size());
+    m_bitmapRect = IntRect(IntPoint(std::max(0, -cropRect.x()), std::max(0, -cropRect.y())),  srcRect.size());
 
     ScriptWrappable::init(this);
 }
 
 ImageBitmap::ImageBitmap(ImageBitmap* bitmap, const IntRect& cropRect)
     : m_imageElement(bitmap->imageElement())
     , m_bitmap(nullptr)
     , m_cropRect(cropRect)
     , m_bitmapOffset(IntPoint())
 {
     IntRect oldBitmapRect = bitmap->bitmapRect();
     IntRect srcRect = intersection(cropRect, oldBitmapRect);
-    m_bitmapRect = IntRect(IntPoint(max(0, oldBitmapRect.x() - cropRect.x()), max(0, oldBitmapRect.y() - cropRect.y())), srcRect.size());
+    m_bitmapRect = IntRect(IntPoint(std::max(0, oldBitmapRect.x() - cropRect.x()), std::max(0, oldBitmapRect.y() - cropRect.y())), srcRect.size());
 
     if (m_imageElement) {
         m_imageElement->addClient(this);
         m_bitmapOffset = srcRect.location();
     } else if (bitmap->bitmapImage()) {
         IntRect adjustedCropRect(IntPoint(cropRect.x() -oldBitmapRect.x(), cropRect.y() - oldBitmapRect.y()), cropRect.size());
         m_bitmap = cropImage(bitmap->bitmapImage().get(), adjustedCropRect);
     }
 
     ScriptWrappable::init(this);
 }
 
 ImageBitmap::ImageBitmap(Image* image, const IntRect& cropRect)
     : m_imageElement(nullptr)
     , m_cropRect(cropRect)
 {
     IntRect srcRect = intersection(cropRect, IntRect(IntPoint(), image->size()));
     m_bitmap = cropImage(image, cropRect);
-    m_bitmapRect = IntRect(IntPoint(max(0, -cropRect.x()), max(0, -cropRect.y())),  srcRect.size());
+    m_bitmapRect = IntRect(IntPoint(std::max(0, -cropRect.x()), std::max(0, -cropRect.y())),  srcRect.size());
 
     ScriptWrappable::init(this);
 }
 
 ImageBitmap::~ImageBitmap()
 {
 #if !ENABLE(OILPAN)
     if (m_imageElement)
         m_imageElement->removeClient(this);
 #endif
@@ skipping 74 matching lines @@
     return FloatSize(width(), height());
 }
 
 void ImageBitmap::trace(Visitor* visitor)
 {
     visitor->trace(m_imageElement);
     ImageLoaderClient::trace(visitor);
 }
 
 }