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

Source/platform/graphics/filters/FEConvolveMatrix.cpp

Index: Source/platform/graphics/filters/FEConvolveMatrix.cpp
diff --git a/Source/platform/graphics/filters/FEConvolveMatrix.cpp b/Source/platform/graphics/filters/FEConvolveMatrix.cpp
index ea854710995810b11f32ef35b9ac93f4565b31f2..9bdbd8c288cb6ca96f850e4d7af929c37e5a4512 100644
--- a/Source/platform/graphics/filters/FEConvolveMatrix.cpp
+++ b/Source/platform/graphics/filters/FEConvolveMatrix.cpp
@@ -460,7 +460,7 @@ void FEConvolveMatrix::applySoftware()
 
         int optimalThreadNumber = (absolutePaintRect().width() * absolutePaintRect().height()) / s_minimalRectDimension;
         if (optimalThreadNumber > 1) {
-            ParallelJobs<InteriorPixelParameters> parallelJobs(&blink::FEConvolveMatrix::setInteriorPixelsWorker, optimalThreadNumber);
+            ParallelJobs<InteriorPixelParameters> parallelJobs(&FEConvolveMatrix::setInteriorPixelsWorker, optimalThreadNumber);
             const int numOfThreads = parallelJobs.numberOfJobs();
 
             // Split the job into "heightPerThread" jobs but there a few jobs that need to be slightly larger since
@@ -502,24 +502,20 @@ void FEConvolveMatrix::applySoftware()
     }
 }
 
-SkMatrixConvolutionImageFilter::TileMode toSkiaTileMode(blink::EdgeModeType edgeMode)
+SkMatrixConvolutionImageFilter::TileMode toSkiaTileMode(EdgeModeType edgeMode)
 {
     switch (edgeMode) {
-    case blink::EDGEMODE_DUPLICATE:
+    case EDGEMODE_DUPLICATE:
         return SkMatrixConvolutionImageFilter::kClamp_TileMode;
-    case blink::EDGEMODE_WRAP:
+    case EDGEMODE_WRAP:
         return SkMatrixConvolutionImageFilter::kRepeat_TileMode;
-    case blink::EDGEMODE_NONE:
+    case EDGEMODE_NONE:
         return SkMatrixConvolutionImageFilter::kClampToBlack_TileMode;
     default:
         return SkMatrixConvolutionImageFilter::kClamp_TileMode;
     }
 }
 
-}; // unnamed namespace
-
-namespace blink {
-
 PassRefPtr<SkImageFilter> FEConvolveMatrix::createImageFilter(SkiaImageFilterBuilder* builder)
 {
     RefPtr<SkImageFilter> input(builder->build(inputEffect(0), operatingColorSpace()));