Make it possible to build SwiftShader for Fuchsia.

With this change SwiftShader is buildable for Fuchsia. Integration with
Mozard for EGL will be implemented in a separate CL.

Bug: chromium:800951
Change-Id: I60160c91aecaa6cdc6b07de688ff54b686613ab3
Reviewed-on: https://swiftshader-review.googlesource.com/16148
Tested-by: Sergey Ulanov <sergeyu@chromium.org>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>

src/OpenGL/libEGL/Surface.cpp

diff --git a/src/OpenGL/libEGL/Surface.cpp b/src/OpenGL/libEGL/Surface.cpp
index ad3bdd2..57261b2 100644
--- a/src/OpenGL/libEGL/Surface.cpp
+++ b/src/OpenGL/libEGL/Surface.cpp
@@ -294,6 +294,10 @@
 		int windowWidth;
 		int windowHeight;
 		sw::OSX::GetNativeWindowSize(window, windowWidth, windowHeight);
+	#elif defined(__Fuchsia__)
+		// TODO(crbug.com/800951): Integrate with Mozart.
+		int windowWidth = 100;
+		int windowHeight = 100;
 	#else
 		#error "WindowSurface::checkForResize unimplemented for this platform"
 	#endif