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

Source/core/frame/ImageBitmap.cpp

Index: Source/core/frame/ImageBitmap.cpp
diff --git a/Source/core/frame/ImageBitmap.cpp b/Source/core/frame/ImageBitmap.cpp
index bbd9e0fd5d8bc6335579351bcbfc0ff5502d2c52..75c926510c69dae9bffa8306a51ea3e16eb69514 100644
--- a/Source/core/frame/ImageBitmap.cpp
+++ b/Source/core/frame/ImageBitmap.cpp
@@ -14,14 +14,16 @@
 #include "platform/graphics/ImageBuffer.h"
 #include "wtf/RefPtr.h"
 
+using namespace std;
+
 namespace WebCore {
 
 static inline IntRect normalizeRect(const IntRect& rect)
 {
-    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()));
+    return IntRect(min(rect.x(), rect.maxX()),
+        min(rect.y(), rect.maxY()),
+        max(rect.width(), -rect.width()),
+        max(rect.height(), -rect.height()));
 }
 
 static inline PassRefPtr<Image> cropImage(Image* image, const IntRect& cropRect)
@@ -41,7 +43,7 @@
     , m_cropRect(cropRect)
 {
     IntRect srcRect = intersection(cropRect, IntRect(0, 0, image->width(), image->height()));
-    m_bitmapRect = IntRect(IntPoint(std::max(0, -cropRect.x()), std::max(0, -cropRect.y())), srcRect.size());
+    m_bitmapRect = IntRect(IntPoint(max(0, -cropRect.x()), max(0, -cropRect.y())), srcRect.size());
     m_bitmapOffset = srcRect.location();
 
     if (!srcRect.width() || !srcRect.height())
@@ -74,7 +76,7 @@
     c->translate(-srcRect.x(), -srcRect.y());
     video->paintCurrentFrameInContext(c, videoRect);
     m_bitmap = buf->copyImage(DontCopyBackingStore);
-    m_bitmapRect = IntRect(IntPoint(std::max(0, -cropRect.x()), std::max(0, -cropRect.y())), srcRect.size());
+    m_bitmapRect = IntRect(IntPoint(max(0, -cropRect.x()), max(0, -cropRect.y())), srcRect.size());
 
     ScriptWrappable::init(this);
 }
@@ -89,7 +91,7 @@
         sourceContext->paintRenderingResultsToCanvas();
 
     IntRect srcRect = intersection(cropRect, IntRect(IntPoint(), canvas->size()));
-    m_bitmapRect = IntRect(IntPoint(std::max(0, -cropRect.x()), std::max(0, -cropRect.y())), srcRect.size());
+    m_bitmapRect = IntRect(IntPoint(max(0, -cropRect.x()), max(0, -cropRect.y())), srcRect.size());
     m_bitmap = cropImage(canvas->buffer()->copyImage(CopyBackingStore).get(), cropRect);
 
     ScriptWrappable::init(this);
@@ -106,10 +108,10 @@
     if (!buf)
         return;
     if (srcRect.width() > 0 && srcRect.height() > 0)
-        buf->putByteArray(Premultiplied, data->data(), data->size(), srcRect, IntPoint(std::min(0, -cropRect.x()), std::min(0, -cropRect.y())));
+        buf->putByteArray(Premultiplied, data->data(), data->size(), srcRect, IntPoint(min(0, -cropRect.x()), min(0, -cropRect.y())));
 
     m_bitmap = buf->copyImage(DontCopyBackingStore);
-    m_bitmapRect = IntRect(IntPoint(std::max(0, -cropRect.x()), std::max(0, -cropRect.y())),  srcRect.size());
+    m_bitmapRect = IntRect(IntPoint(max(0, -cropRect.x()), max(0, -cropRect.y())),  srcRect.size());
 
     ScriptWrappable::init(this);
 }
@@ -122,7 +124,7 @@
 {
     IntRect oldBitmapRect = bitmap->bitmapRect();
     IntRect srcRect = intersection(cropRect, oldBitmapRect);
-    m_bitmapRect = IntRect(IntPoint(std::max(0, oldBitmapRect.x() - cropRect.x()), std::max(0, oldBitmapRect.y() - cropRect.y())), srcRect.size());
+    m_bitmapRect = IntRect(IntPoint(max(0, oldBitmapRect.x() - cropRect.x()), max(0, oldBitmapRect.y() - cropRect.y())), srcRect.size());
 
     if (m_imageElement) {
         m_imageElement->addClient(this);
@@ -141,7 +143,7 @@
 {
     IntRect srcRect = intersection(cropRect, IntRect(IntPoint(), image->size()));
     m_bitmap = cropImage(image, cropRect);
-    m_bitmapRect = IntRect(IntPoint(std::max(0, -cropRect.x()), std::max(0, -cropRect.y())),  srcRect.size());
+    m_bitmapRect = IntRect(IntPoint(max(0, -cropRect.x()), max(0, -cropRect.y())),  srcRect.size());
 
     ScriptWrappable::init(this);
 }