Cleanup namespace usage from animation to exported in platform/

Source/platform/exported/WebScrollbarThemeClientImpl.cpp

Index: Source/platform/exported/WebScrollbarThemeClientImpl.cpp
diff --git a/Source/platform/exported/WebScrollbarThemeClientImpl.cpp b/Source/platform/exported/WebScrollbarThemeClientImpl.cpp
index 35c976ee537a3835ae64b212d39c485d52d302e6..9aad523c8e2a13a72b70a8fd1150996f24b07b13 100644
--- a/Source/platform/exported/WebScrollbarThemeClientImpl.cpp
+++ b/Source/platform/exported/WebScrollbarThemeClientImpl.cpp
@@ -29,8 +29,6 @@
 
 #include "platform/scroll/ScrollbarTheme.h"
 
-using blink::WebScrollbar;
-
 namespace blink {
 
 WebScrollbarThemeClientImpl::WebScrollbarThemeClientImpl(WebScrollbar* scrollbar)
@@ -111,14 +109,14 @@ void WebScrollbarThemeClientImpl::invalidateRect(const IntRect&)
     ASSERT_NOT_REACHED();
 }
 
-blink::ScrollbarOverlayStyle WebScrollbarThemeClientImpl::scrollbarOverlayStyle() const
+ScrollbarOverlayStyle WebScrollbarThemeClientImpl::scrollbarOverlayStyle() const
 {
-    return static_cast<blink::ScrollbarOverlayStyle>(m_scrollbar->scrollbarOverlayStyle());
+    return static_cast<ScrollbarOverlayStyle>(m_scrollbar->scrollbarOverlayStyle());
 }
 
 void WebScrollbarThemeClientImpl::getTickmarks(Vector<IntRect>& tickmarks) const
 {
-    blink::WebVector<blink::WebRect> webTickmarks;
+    WebVector<WebRect> webTickmarks;
     m_scrollbar->getTickmarks(webTickmarks);
     tickmarks.resize(webTickmarks.size());
     for (size_t i = 0; i < webTickmarks.size(); ++i)
@@ -149,9 +147,9 @@ bool WebScrollbarThemeClientImpl::isCustomScrollbar() const
     return m_scrollbar->isCustomScrollbar();
 }
 
-blink::ScrollbarOrientation WebScrollbarThemeClientImpl::orientation() const
+ScrollbarOrientation WebScrollbarThemeClientImpl::orientation() const
 {
-    return static_cast<blink::ScrollbarOrientation>(m_scrollbar->orientation());
+    return static_cast<ScrollbarOrientation>(m_scrollbar->orientation());
 }
 
 bool WebScrollbarThemeClientImpl::isLeftSideVerticalScrollbar() const
@@ -184,19 +182,19 @@ int WebScrollbarThemeClientImpl::maximum() const
     return m_scrollbar->maximum();
 }
 
-blink::ScrollbarControlSize WebScrollbarThemeClientImpl::controlSize() const
+ScrollbarControlSize WebScrollbarThemeClientImpl::controlSize() const
 {
-    return static_cast<blink::ScrollbarControlSize>(m_scrollbar->controlSize());
+    return static_cast<ScrollbarControlSize>(m_scrollbar->controlSize());
 }
 
-blink::ScrollbarPart WebScrollbarThemeClientImpl::pressedPart() const
+ScrollbarPart WebScrollbarThemeClientImpl::pressedPart() const
 {
-    return static_cast<blink::ScrollbarPart>(m_scrollbar->pressedPart());
+    return static_cast<ScrollbarPart>(m_scrollbar->pressedPart());
 }
 
-blink::ScrollbarPart WebScrollbarThemeClientImpl::hoveredPart() const
+ScrollbarPart WebScrollbarThemeClientImpl::hoveredPart() const
 {
-    return static_cast<blink::ScrollbarPart>(m_scrollbar->hoveredPart());
+    return static_cast<ScrollbarPart>(m_scrollbar->hoveredPart());
 }
 
 void WebScrollbarThemeClientImpl::styleChanged()