Cleanup namespace usage in platform/graphics/[filters/* to skia/*] and platform/graphics/[B-D]*

Source/platform/graphics/filters/FilterOperationsTest.cpp

 /*
  * 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
@@ skipping 11 matching lines @@
  * (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 "platform/graphics/filters/FilterOperations.h"
 
 #include <gtest/gtest.h>
 
 using namespace blink;
-using namespace blink;
 
 namespace {
 
 TEST(FilterOperationsTest, getOutsetsBlur)
 {
     FilterOperations ops;
-    ops.operations().append(BlurFilterOperation::create(Length(20.0, blink::Fixed)));
+    ops.operations().append(BlurFilterOperation::create(Length(20.0, Fixed)));
     EXPECT_TRUE(ops.hasOutsets());
     FilterOutsets outsets = ops.outsets();
     EXPECT_EQ(57, outsets.top());
     EXPECT_EQ(57, outsets.right());
     EXPECT_EQ(57, outsets.bottom());
     EXPECT_EQ(57, outsets.left());
 }
 
 TEST(FilterOperationsTest, getOutsetsDropShadow)
 {
     FilterOperations ops;
     ops.operations().append(DropShadowFilterOperation::create(IntPoint(3, 8), 20, Color(1, 2, 3)));
     EXPECT_TRUE(ops.hasOutsets());
     FilterOutsets outsets = ops.outsets();
     EXPECT_EQ(49, outsets.top());
     EXPECT_EQ(60, outsets.right());
     EXPECT_EQ(65, outsets.bottom());
     EXPECT_EQ(54, outsets.left());
 }
 
 }