Use more explicit include paths.

This helps clarify dependencies and simplifies include paths.

Bug swiftshader:86

Change-Id: I564ee420bb9029fa6428e49b63a86d633301bec2
Reviewed-on: https://swiftshader-review.googlesource.com/13288
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
diff --git a/src/Renderer/PixelProcessor.cpp b/src/Renderer/PixelProcessor.cpp
index abf6593..356aa47 100644
--- a/src/Renderer/PixelProcessor.cpp
+++ b/src/Renderer/PixelProcessor.cpp
@@ -14,13 +14,13 @@
 
 #include "PixelProcessor.hpp"
 
-#include "PixelPipeline.hpp"
-#include "PixelProgram.hpp"
-#include "PixelShader.hpp"
 #include "Surface.hpp"
 #include "Primitive.hpp"
-#include "Constants.hpp"
-#include "Debug.hpp"
+#include "Shader/PixelPipeline.hpp"
+#include "Shader/PixelProgram.hpp"
+#include "Shader/PixelShader.hpp"
+#include "Shader/Constants.hpp"
+#include "Common/Debug.hpp"
 
 #include <string.h>