Vulkan: Implement setUniform for matrices correctly

This fixes all these tests:
dEQP-GLES2.functional.shaders.functions.datatypes.float_mat*
dEQP-GLES2.functional.shaders.functions.datatypes.mat*
dEQP-GLES2.functional.shaders.linkage.varying_type_mat*
dEQP-GLES2.functional.shaders.matrix.*
dEQP-GLES2.functional.uniform_api.value.assigned.by_pointer.render.basic.mat2_*
dEQP-GLES2.functional.uniform_api.value.assigned.by_pointer.render.basic.mat3_*
dEQP-GLES2.functional.shaders.conversions.matrix_to_matrix.*
dEQP-GLES2.functional.shaders.conversions.matrix_combine.*
dEQP-GLES2.functional.shaders.random.scalar_conversion*

Bug:angleproject:2581
Bug:angleproject:2583
Bug:angleproject:2584
Bug:angleproject:2588
Change-Id: Ib8c03397f0229432292c51f4a6332f954fc8fa12
Reviewed-on: https://chromium-review.googlesource.com/1080392
Commit-Queue: Luc Ferron <lucferron@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
diff --git a/src/libANGLE/renderer/vulkan/ProgramVk.h b/src/libANGLE/renderer/vulkan/ProgramVk.h
index 9b72a73..d3e456f 100644
--- a/src/libANGLE/renderer/vulkan/ProgramVk.h
+++ b/src/libANGLE/renderer/vulkan/ProgramVk.h
@@ -125,6 +125,12 @@
     void setDefaultUniformBlocksMinSizeForTesting(size_t minSize);
 
   private:
+    template <int cols, int rows>
+    void setUniformMatrixfv(GLint location,
+                            GLsizei count,
+                            GLboolean transpose,
+                            const GLfloat *value);
+
     vk::Error reset(ContextVk *contextVk);
     vk::Error allocateDescriptorSet(ContextVk *contextVk, uint32_t descriptorSetIndex);
     gl::Error initDefaultUniformBlocks(const gl::Context *glContext);