Remove histogram GPU.Error_TexImage{2|3}D

BUG=1037113
TEST=bots
R=magchen@chromium.org

Change-Id: I17a8850477bf43010ad7c6febb059d6b4a34071e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1981189Reviewed-by: Maggie Chen <magchen@chromium.org>
Commit-Queue: Zhenyao Mo <zmo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#727319}

gpu/command_buffer/service/gl_utils.cc

@@ -7,7 +7,6 @@
 #include <algorithm>
 #include <unordered_set>
 
-#include "base/metrics/histogram.h"
 #include "gpu/command_buffer/common/capabilities.h"
 #include "gpu/command_buffer/service/error_state.h"
 #include "gpu/command_buffer/service/feature_info.h"
@@ -107,18 +106,6 @@ const char* GetDebugSeverityString(GLenum severity) {
 }
 }  // namespace
 
-std::vector<int> GetAllGLErrors() {
-  int gl_errors[] = {
-      GL_NO_ERROR,
-      GL_INVALID_ENUM,
-      GL_INVALID_VALUE,
-      GL_INVALID_OPERATION,
-      GL_INVALID_FRAMEBUFFER_OPERATION,
-      GL_OUT_OF_MEMORY,
-  };
-  return base::CustomHistogram::ArrayToCustomEnumRanges(gl_errors);
-}
-
 bool PrecisionMeetsSpecForHighpFloat(GLint rangeMin,
                                      GLint rangeMax,
                                      GLint precision) {

gpu/command_buffer/service/gl_utils.h

@@ -9,7 +9,6 @@
 #define GPU_COMMAND_BUFFER_SERVICE_GL_UTILS_H_
 
 #include <string>
-#include <vector>
 
 #include "build/build_config.h"
 #include "gpu/command_buffer/common/constants.h"
@@ -64,8 +63,6 @@ struct CALayerSharedState {
   gfx::Transform transform;
 };
 
-std::vector<int> GetAllGLErrors();
-
 bool PrecisionMeetsSpecForHighpFloat(GLint rangeMin,
                                      GLint rangeMax,
                                      GLint precision);

gpu/command_buffer/service/texture_manager.cc

@@ -15,7 +15,6 @@
 #include "base/bits.h"
 #include "base/format_macros.h"
 #include "base/lazy_instance.h"
-#include "base/metrics/histogram_macros.h"
 #include "base/stl_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ -3696,13 +3695,6 @@ void TextureManager::DoTexImage(DecoderTextureState* texture_state,
     }
   }
   GLenum error = ERRORSTATE_PEEK_GL_ERROR(error_state, function_name);
-  if (args.command_type == DoTexImageArguments::CommandType::kTexImage3D) {
-    UMA_HISTOGRAM_CUSTOM_ENUMERATION("GPU.Error_TexImage3D", error,
-        GetAllGLErrors());
-  } else {
-    UMA_HISTOGRAM_CUSTOM_ENUMERATION("GPU.Error_TexImage2D", error,
-        GetAllGLErrors());
-  }
   if (error == GL_NO_ERROR) {
     bool set_as_cleared = (args.pixels != nullptr || unpack_buffer_bound);
     SetLevelInfo(