Revert of Refactor how we store and use samplers in Ganesh (patchset #7 id:120001 of https://codereview.chromium.org/1885863004/ )

Reason for revert:
breaking bots

Original issue's description:
> Refactor how we store and use samplers in Ganesh
>
> The main goal of this refactorization is to allow Vulkan to use separate
> sampler and texture objects in the shader and descriptor sets and combine
> them into a sampler2d in the shader where needed.
>
> A large part of this is separating how we store samplers and uniforms in the
> UniformHandler. We no longer need to store handles to samplers besides when
> we are initially emitting code. After we emit code all we ever do is loop over
> all samplers and do some processor independent work on them, so we have no need
> for direct access to individual samplers.
>
> In the GLProgram all we ever do is set the sampler uniforms in the ctor and never
> touch them again, so no need to save sampler info there. The texture access on
> program reuse just assume that they come in the same order as we set the texture
> units for the samplers
>
> For Vulkan, it is a similar story. We create the descriptor set layouts with the samplers,
> then when we get new textures, we just assume they come in in the same order as we
> set the samplers on the descriptor sets. Thus no need to save direct vulkan info.
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1885863004
>
> Committed: https://skia.googlesource.com/skia/+/45b61a1c4c0be896e7b12fd1405abfece799114f

TBR=bsalomon@google.com,jvanverth@google.com,cdalton@nvidia.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1896013003

1 files changed, 0 insertions, 22 deletions

diff --git a/src/gpu/glsl/GrGLSLUniformHandler.h b/src/gpu/glsl/GrGLSLUniformHandler.h
index 56cac4a49f..a2f70532ad 100644
--- a/src/gpu/glsl/GrGLSLUniformHandler.h
+++ b/src/gpu/glsl/GrGLSLUniformHandler.h
@@ -12,14 +12,12 @@
 #include "GrGLSLShaderVar.h"
 
 class GrGLSLProgramBuilder;
-class GrGLSLSampler;
 
 class GrGLSLUniformHandler {
 public:
     virtual ~GrGLSLUniformHandler() {}
 
     typedef GrGLSLProgramDataManager::UniformHandle UniformHandle;
-    typedef GrGLSLProgramDataManager::UniformHandle SamplerHandle;
 
     /** Add a uniform variable to the current program, that has visibility in one or more shaders.
         visibility is a bitfield of GrShaderFlag values indicating from which shaders the uniform
@@ -32,7 +30,6 @@ public:
                              GrSLPrecision precision,
                              const char* name,
                              const char** outName = nullptr) {
-        SkASSERT(!GrSLTypeIsSamplerType(type));
         return this->addUniformArray(visibility, type, precision, name, 0, outName);
     }
 
@@ -42,7 +39,6 @@ public:
                                   const char* name,
                                   int arrayCount,
                                   const char** outName = nullptr) {
-        SkASSERT(!GrSLTypeIsSamplerType(type));
         return this->internalAddUniformArray(visibility, type, precision, name, true, arrayCount,
                                              outName);
     }
@@ -53,7 +49,6 @@ public:
      * Shortcut for getUniformVariable(u).c_str()
      */
     virtual const char* getUniformCStr(UniformHandle u) const = 0;
-
 protected:
     explicit GrGLSLUniformHandler(GrGLSLProgramBuilder* program) : fProgramBuilder(program) {}
 
@@ -61,23 +56,6 @@ protected:
     GrGLSLProgramBuilder* fProgramBuilder;
 
 private:
-    virtual int numSamplers() const = 0;
-    virtual const GrGLSLSampler& getSampler(SamplerHandle handle) const = 0;
-
-    SamplerHandle addSampler(uint32_t visibility,
-                             GrPixelConfig config,
-                             GrSLType type,
-                             GrSLPrecision precision,
-                             const char* name) {
-        return this->internalAddSampler(visibility, config, type, precision, name);
-    }
-
-    virtual SamplerHandle internalAddSampler(uint32_t visibility,
-                                             GrPixelConfig config,
-                                             GrSLType type,
-                                             GrSLPrecision precision,
-                                             const char* name) = 0;
-
     virtual UniformHandle internalAddUniformArray(uint32_t visibility,
                                                   GrSLType type,
                                                   GrSLPrecision precision,