Make command buffer commands and immediate data volatile

gpu/command_buffer/service/gles2_cmd_decoder_passthrough_handlers.cc

 // Copyright (c) 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gpu/command_buffer/service/gles2_cmd_decoder_passthrough.h"
 
 namespace gpu {
 namespace gles2 {
 
 // Custom Handlers
 error::Error GLES2DecoderPassthroughImpl::HandleBindAttribLocationBucket(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::BindAttribLocationBucket& c =
-      *static_cast<const gles2::cmds::BindAttribLocationBucket*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::BindAttribLocationBucket& c =
+      *static_cast<const volatile gles2::cmds::BindAttribLocationBucket*>(
+          cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLuint index = static_cast<GLuint>(c.index);
   Bucket* bucket = GetBucket(c.name_bucket_id);
   if (!bucket || bucket->size() == 0) {
     return error::kInvalidArguments;
   }
   std::string name_str;
   if (!bucket->GetAsString(&name_str)) {
     return error::kInvalidArguments;
   }
   error::Error error = DoBindAttribLocation(program, index, name_str.c_str());
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleBufferData(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::BufferData& c =
-      *static_cast<const gles2::cmds::BufferData*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::BufferData& c =
+      *static_cast<const volatile gles2::cmds::BufferData*>(cmd_data);
   GLenum target = static_cast<GLenum>(c.target);
   GLsizeiptr size = static_cast<GLsizeiptr>(c.size);
   uint32_t data_shm_id = static_cast<uint32_t>(c.data_shm_id);
   uint32_t data_shm_offset = static_cast<uint32_t>(c.data_shm_offset);
   GLenum usage = static_cast<GLenum>(c.usage);
   const void* data = NULL;
   if (data_shm_id != 0 || data_shm_offset != 0) {
     data = GetSharedMemoryAs<const void*>(data_shm_id, data_shm_offset, size);
     if (!data) {
       return error::kOutOfBounds;
     }
   }
   error::Error error = DoBufferData(target, size, data, usage);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleClientWaitSync(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::ClientWaitSync& c =
-      *static_cast<const gles2::cmds::ClientWaitSync*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::ClientWaitSync& c =
+      *static_cast<const volatile gles2::cmds::ClientWaitSync*>(cmd_data);
   const GLuint sync = static_cast<GLuint>(c.sync);
   const GLbitfield flags = static_cast<GLbitfield>(c.flags);
   const GLuint64 timeout = c.timeout();
   typedef cmds::ClientWaitSync::Result Result;
   Result* result_dst = GetSharedMemoryAs<Result*>(
       c.result_shm_id, c.result_shm_offset, sizeof(*result_dst));
   if (!result_dst) {
     return error::kOutOfBounds;
   }
   error::Error error = DoClientWaitSync(sync, flags, timeout, result_dst);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleCreateProgram(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::CreateProgram& c =
-      *static_cast<const gles2::cmds::CreateProgram*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::CreateProgram& c =
+      *static_cast<const volatile gles2::cmds::CreateProgram*>(cmd_data);
   GLuint client_id = static_cast<GLuint>(c.client_id);
   error::Error error = DoCreateProgram(client_id);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleCreateShader(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::CreateShader& c =
-      *static_cast<const gles2::cmds::CreateShader*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::CreateShader& c =
+      *static_cast<const volatile gles2::cmds::CreateShader*>(cmd_data);
   GLenum type = static_cast<GLenum>(c.type);
   GLuint client_id = static_cast<GLuint>(c.client_id);
   error::Error error = DoCreateShader(type, client_id);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleFenceSync(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::FenceSync& c =
-      *static_cast<const gles2::cmds::FenceSync*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::FenceSync& c =
+      *static_cast<const volatile gles2::cmds::FenceSync*>(cmd_data);
   GLenum condition = static_cast<GLenum>(c.condition);
   GLbitfield flags = static_cast<GLbitfield>(c.flags);
   GLuint client_id = static_cast<GLuint>(c.client_id);
   error::Error error = DoFenceSync(condition, flags, client_id);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleDrawArrays(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::DrawArrays& c =
-      *static_cast<const gles2::cmds::DrawArrays*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::DrawArrays& c =
+      *static_cast<const volatile gles2::cmds::DrawArrays*>(cmd_data);
   GLenum mode = static_cast<GLenum>(c.mode);
   GLint first = static_cast<GLint>(c.first);
   GLsizei count = static_cast<GLsizei>(c.count);
   error::Error error = DoDrawArrays(mode, first, count);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleDrawElements(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::DrawElements& c =
-      *static_cast<const gles2::cmds::DrawElements*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::DrawElements& c =
+      *static_cast<const volatile gles2::cmds::DrawElements*>(cmd_data);
   GLenum mode = static_cast<GLenum>(c.mode);
   GLsizei count = static_cast<GLsizei>(c.count);
   GLenum type = static_cast<GLenum>(c.type);
   const GLvoid* indices =
       reinterpret_cast<const GLvoid*>(static_cast<uintptr_t>(c.index_offset));
   error::Error error = DoDrawElements(mode, count, type, indices);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetActiveAttrib(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetActiveAttrib& c =
-      *static_cast<const gles2::cmds::GetActiveAttrib*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetActiveAttrib& c =
+      *static_cast<const volatile gles2::cmds::GetActiveAttrib*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLuint index = static_cast<GLuint>(c.index);
   uint32_t name_bucket_id = c.name_bucket_id;
   typedef cmds::GetActiveAttrib::Result Result;
   Result* result = GetSharedMemoryAs<Result*>(
       c.result_shm_id, c.result_shm_offset, sizeof(*result));
   if (!result) {
     return error::kOutOfBounds;
   }
   // Check that the client initialized the result.
   if (result->success != 0) {
     return error::kInvalidArguments;
   }
 
   std::string name;
   error::Error error =
       DoGetActiveAttrib(program, index, &result->size, &result->type, &name);
   if (error != error::kNoError) {
     return error;
   }
 
   result->success = 1;  // true.
   Bucket* bucket = CreateBucket(name_bucket_id);
   bucket->SetFromString(name.c_str());
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetActiveUniform(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetActiveUniform& c =
-      *static_cast<const gles2::cmds::GetActiveUniform*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetActiveUniform& c =
+      *static_cast<const volatile gles2::cmds::GetActiveUniform*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLuint index = static_cast<GLuint>(c.index);
   uint32_t name_bucket_id = c.name_bucket_id;
   typedef cmds::GetActiveUniform::Result Result;
   Result* result = GetSharedMemoryAs<Result*>(
       c.result_shm_id, c.result_shm_offset, sizeof(*result));
   if (!result) {
     return error::kOutOfBounds;
   }
   // Check that the client initialized the result.
   if (result->success != 0) {
     return error::kInvalidArguments;
   }
 
   std::string name;
   error::Error error =
       DoGetActiveUniform(program, index, &result->size, &result->type, &name);
   if (error != error::kNoError) {
     return error;
   }
 
   result->success = 1;  // true.
   Bucket* bucket = CreateBucket(name_bucket_id);
   bucket->SetFromString(name.c_str());
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetActiveUniformBlockiv(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetActiveUniformBlockiv& c =
-      *static_cast<const gles2::cmds::GetActiveUniformBlockiv*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetActiveUniformBlockiv& c =
+      *static_cast<const volatile gles2::cmds::GetActiveUniformBlockiv*>(
+          cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLuint uniformBlockIndex = static_cast<GLuint>(c.index);
   GLenum pname = static_cast<GLenum>(c.pname);
   unsigned int buffer_size = 0;
   typedef cmds::GetActiveUniformBlockiv::Result Result;
   Result* result = GetSharedMemoryAndSizeAs<Result*>(
       c.params_shm_id, c.params_shm_offset, &buffer_size);
   GLint* params = result ? result->GetData() : NULL;
   GLsizei bufsize = Result::ComputeMaxResults(buffer_size);
   GLsizei length = 0;
   error::Error error = DoGetActiveUniformBlockiv(
       program, uniformBlockIndex, pname, bufsize, &length, params);
   if (error != error::kNoError) {
     return error;
   }
   if (length > bufsize) {
     return error::kOutOfBounds;
   }
   result->SetNumResults(length);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetActiveUniformBlockName(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetActiveUniformBlockName& c =
-      *static_cast<const gles2::cmds::GetActiveUniformBlockName*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetActiveUniformBlockName& c =
+      *static_cast<const volatile gles2::cmds::GetActiveUniformBlockName*>(
+          cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLuint uniformBlockIndex = static_cast<GLuint>(c.index);
   uint32_t name_bucket_id = c.name_bucket_id;
   typedef cmds::GetActiveUniformBlockName::Result Result;
   Result* result = GetSharedMemoryAs<Result*>(
       c.result_shm_id, c.result_shm_offset, sizeof(*result));
   if (!result) {
     return error::kOutOfBounds;
   }
   // Check that the client initialized the result.
   if (*result != 0) {
     return error::kInvalidArguments;
   }
 
   std::string name;
   error::Error error =
       DoGetActiveUniformBlockName(program, uniformBlockIndex, &name);
   if (error != error::kNoError) {
     return error;
   }
 
   *result = 1;
   Bucket* bucket = CreateBucket(name_bucket_id);
   bucket->SetFromString(name.c_str());
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetActiveUniformsiv(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetActiveUniformsiv& c =
-      *static_cast<const gles2::cmds::GetActiveUniformsiv*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetActiveUniformsiv& c =
+      *static_cast<const volatile gles2::cmds::GetActiveUniformsiv*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLenum pname = static_cast<GLenum>(c.pname);
   Bucket* bucket = GetBucket(c.indices_bucket_id);
   if (!bucket) {
     return error::kInvalidArguments;
   }
   GLsizei uniformCount = static_cast<GLsizei>(bucket->size() / sizeof(GLuint));
   const GLuint* indices = bucket->GetDataAs<const GLuint*>(0, bucket->size());
   typedef cmds::GetActiveUniformsiv::Result Result;
   Result* result = GetSharedMemoryAs<Result*>(
@@ skipping 14 matching lines @@
   if (error != error::kNoError) {
     return error;
   }
 
   result->SetNumResults(length);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetAttachedShaders(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetAttachedShaders& c =
-      *static_cast<const gles2::cmds::GetAttachedShaders*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetAttachedShaders& c =
+      *static_cast<const volatile gles2::cmds::GetAttachedShaders*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   typedef cmds::GetAttachedShaders::Result Result;
   uint32_t maxCount = Result::ComputeMaxResults(c.result_size);
   Result* result = GetSharedMemoryAs<Result*>(
       c.result_shm_id, c.result_shm_offset, Result::ComputeSize(maxCount));
   if (!result) {
     return error::kOutOfBounds;
   }
   // Check that the client initialized the result.
   if (result->size != 0) {
     return error::kInvalidArguments;
   }
   GLsizei count = 0;
   error::Error error =
       DoGetAttachedShaders(program, maxCount, &count, result->GetData());
   if (error != error::kNoError) {
     return error;
   }
 
   result->SetNumResults(count);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetAttribLocation(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetAttribLocation& c =
-      *static_cast<const gles2::cmds::GetAttribLocation*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetAttribLocation& c =
+      *static_cast<const volatile gles2::cmds::GetAttribLocation*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   Bucket* bucket = GetBucket(c.name_bucket_id);
   if (!bucket) {
     return error::kInvalidArguments;
   }
   std::string name_str;
   if (!bucket->GetAsString(&name_str)) {
     return error::kInvalidArguments;
   }
   GLint* location = GetSharedMemoryAs<GLint*>(
       c.location_shm_id, c.location_shm_offset, sizeof(GLint));
   if (!location) {
     return error::kOutOfBounds;
   }
   if (*location != -1) {
     return error::kInvalidArguments;
   }
   error::Error error = DoGetAttribLocation(program, name_str.c_str(), location);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetFragDataLocation(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetFragDataLocation& c =
-      *static_cast<const gles2::cmds::GetFragDataLocation*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetFragDataLocation& c =
+      *static_cast<const volatile gles2::cmds::GetFragDataLocation*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   Bucket* bucket = GetBucket(c.name_bucket_id);
   if (!bucket) {
     return error::kInvalidArguments;
   }
   std::string name_str;
   if (!bucket->GetAsString(&name_str)) {
     return error::kInvalidArguments;
   }
   GLint* location = GetSharedMemoryAs<GLint*>(
       c.location_shm_id, c.location_shm_offset, sizeof(GLint));
   if (!location) {
     return error::kOutOfBounds;
   }
   if (*location != -1) {
     return error::kInvalidArguments;
   }
   error::Error error =
       DoGetFragDataLocation(program, name_str.c_str(), location);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetInternalformativ(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetInternalformativ& c =
-      *static_cast<const gles2::cmds::GetInternalformativ*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetInternalformativ& c =
+      *static_cast<const volatile gles2::cmds::GetInternalformativ*>(cmd_data);
   GLenum target = static_cast<GLenum>(c.target);
   GLenum internalformat = static_cast<GLenum>(c.format);
   GLenum pname = static_cast<GLenum>(c.pname);
   unsigned int buffer_size = 0;
   typedef cmds::GetInternalformativ::Result Result;
   Result* result = GetSharedMemoryAndSizeAs<Result*>(
       c.params_shm_id, c.params_shm_offset, &buffer_size);
   GLint* params = result ? result->GetData() : NULL;
   GLsizei bufsize = Result::ComputeMaxResults(buffer_size);
   GLsizei length = 0;
   error::Error error = DoGetInternalformativ(target, internalformat, pname,
                                              bufsize, &length, params);
   if (error != error::kNoError) {
     return error;
   }
   if (length > bufsize) {
     return error::kOutOfBounds;
   }
   result->SetNumResults(length);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetProgramInfoLog(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetProgramInfoLog& c =
-      *static_cast<const gles2::cmds::GetProgramInfoLog*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetProgramInfoLog& c =
+      *static_cast<const volatile gles2::cmds::GetProgramInfoLog*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   uint32_t bucket_id = static_cast<uint32_t>(c.bucket_id);
 
   std::string infolog;
   error::Error error = DoGetProgramInfoLog(program, &infolog);
   if (error != error::kNoError) {
     return error;
   }
 
   Bucket* bucket = CreateBucket(bucket_id);
   bucket->SetFromString(infolog.c_str());
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetShaderInfoLog(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetShaderInfoLog& c =
-      *static_cast<const gles2::cmds::GetShaderInfoLog*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetShaderInfoLog& c =
+      *static_cast<const volatile gles2::cmds::GetShaderInfoLog*>(cmd_data);
   GLuint shader = static_cast<GLuint>(c.shader);
   uint32_t bucket_id = static_cast<uint32_t>(c.bucket_id);
 
   std::string infolog;
   error::Error error = DoGetShaderInfoLog(shader, &infolog);
   if (error != error::kNoError) {
     return error;
   }
 
   Bucket* bucket = CreateBucket(bucket_id);
   bucket->SetFromString(infolog.c_str());
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetShaderPrecisionFormat(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetShaderPrecisionFormat& c =
-      *static_cast<const gles2::cmds::GetShaderPrecisionFormat*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetShaderPrecisionFormat& c =
+      *static_cast<const volatile gles2::cmds::GetShaderPrecisionFormat*>(
+          cmd_data);
   GLenum shader_type = static_cast<GLenum>(c.shadertype);
   GLenum precision_type = static_cast<GLenum>(c.precisiontype);
   typedef cmds::GetShaderPrecisionFormat::Result Result;
   Result* result = GetSharedMemoryAs<Result*>(
       c.result_shm_id, c.result_shm_offset, sizeof(*result));
   if (!result) {
     return error::kOutOfBounds;
   }
   // Check that the client initialized the result.
   if (result->success != 0) {
@@ skipping 11 matching lines @@
   result->success = 1;  // true
   result->min_range = range[0];
   result->max_range = range[1];
   result->precision = precision;
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetShaderSource(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetShaderSource& c =
-      *static_cast<const gles2::cmds::GetShaderSource*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetShaderSource& c =
+      *static_cast<const volatile gles2::cmds::GetShaderSource*>(cmd_data);
   GLuint shader = static_cast<GLuint>(c.shader);
   uint32_t bucket_id = static_cast<uint32_t>(c.bucket_id);
 
   std::string source;
   error::Error error = DoGetShaderSource(shader, &source);
   if (error != error::kNoError) {
     return error;
   }
 
   Bucket* bucket = CreateBucket(bucket_id);
   bucket->SetFromString(source.c_str());
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetString(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetString& c =
-      *static_cast<const gles2::cmds::GetString*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetString& c =
+      *static_cast<const volatile gles2::cmds::GetString*>(cmd_data);
   GLenum name = static_cast<GLenum>(c.name);
 
   const char* str = nullptr;
   error::Error error = DoGetString(name, &str);
   if (error != error::kNoError) {
     return error;
   }
   if (!str) {
     return error::kOutOfBounds;
   }
   Bucket* bucket = CreateBucket(c.bucket_id);
   bucket->SetFromString(str);
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetTransformFeedbackVarying(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetTransformFeedbackVarying& c =
-      *static_cast<const gles2::cmds::GetTransformFeedbackVarying*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetTransformFeedbackVarying& c =
+      *static_cast<const volatile gles2::cmds::GetTransformFeedbackVarying*>(
+          cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLuint index = static_cast<GLuint>(c.index);
   uint32_t name_bucket_id = c.name_bucket_id;
   typedef cmds::GetTransformFeedbackVarying::Result Result;
   Result* result = GetSharedMemoryAs<Result*>(
       c.result_shm_id, c.result_shm_offset, sizeof(*result));
   if (!result) {
     return error::kOutOfBounds;
   }
   // Check that the client initialized the result.
@@ skipping 13 matching lines @@
   result->success = 1;  // true.
   result->size = static_cast<int32_t>(size);
   result->type = static_cast<uint32_t>(type);
   Bucket* bucket = CreateBucket(name_bucket_id);
   bucket->SetFromString(name.c_str());
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetUniformBlockIndex(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetUniformBlockIndex& c =
-      *static_cast<const gles2::cmds::GetUniformBlockIndex*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetUniformBlockIndex& c =
+      *static_cast<const volatile gles2::cmds::GetUniformBlockIndex*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   Bucket* bucket = GetBucket(c.name_bucket_id);
   if (!bucket) {
     return error::kInvalidArguments;
   }
   std::string name_str;
   if (!bucket->GetAsString(&name_str)) {
     return error::kInvalidArguments;
   }
   GLint* index = GetSharedMemoryAs<GLint*>(c.index_shm_id, c.index_shm_offset,
                                            sizeof(GLint));
   if (!index) {
     return error::kOutOfBounds;
   }
   if (*index != -1) {
     return error::kInvalidArguments;
   }
   error::Error error = DoGetUniformBlockIndex(program, name_str.c_str(), index);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetUniformfv(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetUniformfv& c =
-      *static_cast<const gles2::cmds::GetUniformfv*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetUniformfv& c =
+      *static_cast<const volatile gles2::cmds::GetUniformfv*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLint location = static_cast<GLint>(c.location);
   unsigned int buffer_size = 0;
   typedef cmds::GetUniformfv::Result Result;
   Result* result = GetSharedMemoryAndSizeAs<Result*>(
       c.params_shm_id, c.params_shm_offset, &buffer_size);
   GLfloat* params = result ? result->GetData() : NULL;
   GLsizei bufsize = Result::ComputeMaxResults(buffer_size);
   GLsizei length = 0;
   error::Error error =
       DoGetUniformfv(program, location, bufsize, &length, params);
   if (error != error::kNoError) {
     return error;
   }
   if (length > bufsize) {
     return error::kOutOfBounds;
   }
   result->SetNumResults(length);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetUniformiv(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetUniformiv& c =
-      *static_cast<const gles2::cmds::GetUniformiv*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetUniformiv& c =
+      *static_cast<const volatile gles2::cmds::GetUniformiv*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLint location = static_cast<GLint>(c.location);
   unsigned int buffer_size = 0;
   typedef cmds::GetUniformiv::Result Result;
   Result* result = GetSharedMemoryAndSizeAs<Result*>(
       c.params_shm_id, c.params_shm_offset, &buffer_size);
   GLint* params = result ? result->GetData() : NULL;
   GLsizei bufsize = Result::ComputeMaxResults(buffer_size);
   GLsizei length = 0;
   error::Error error =
       DoGetUniformiv(program, location, bufsize, &length, params);
   if (error != error::kNoError) {
     return error;
   }
   if (length > bufsize) {
     return error::kOutOfBounds;
   }
   result->SetNumResults(length);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetUniformuiv(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetUniformuiv& c =
-      *static_cast<const gles2::cmds::GetUniformuiv*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetUniformuiv& c =
+      *static_cast<const volatile gles2::cmds::GetUniformuiv*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLint location = static_cast<GLint>(c.location);
   unsigned int buffer_size = 0;
   typedef cmds::GetUniformuiv::Result Result;
   Result* result = GetSharedMemoryAndSizeAs<Result*>(
       c.params_shm_id, c.params_shm_offset, &buffer_size);
   GLuint* params = result ? result->GetData() : NULL;
   GLsizei bufsize = Result::ComputeMaxResults(buffer_size);
   GLsizei length = 0;
   error::Error error =
       DoGetUniformuiv(program, location, bufsize, &length, params);
   if (error != error::kNoError) {
     return error;
   }
   if (length > bufsize) {
     return error::kOutOfBounds;
   }
   result->SetNumResults(length);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetUniformIndices(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetUniformIndices& c =
-      *static_cast<const gles2::cmds::GetUniformIndices*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetUniformIndices& c =
+      *static_cast<const volatile gles2::cmds::GetUniformIndices*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   Bucket* bucket = GetBucket(c.names_bucket_id);
   if (!bucket) {
     return error::kInvalidArguments;
   }
   GLsizei count = 0;
   std::vector<char*> names;
   std::vector<GLint> len;
   if (!bucket->GetAsStrings(&count, &names, &len) || count <= 0) {
     return error::kInvalidArguments;
@@ skipping 18 matching lines @@
   }
   if (length != count) {
     return error::kOutOfBounds;
   }
   result->SetNumResults(length);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetUniformLocation(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetUniformLocation& c =
-      *static_cast<const gles2::cmds::GetUniformLocation*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetUniformLocation& c =
+      *static_cast<const volatile gles2::cmds::GetUniformLocation*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   Bucket* bucket = GetBucket(c.name_bucket_id);
   if (!bucket) {
     return error::kInvalidArguments;
   }
   std::string name_str;
   if (!bucket->GetAsString(&name_str)) {
     return error::kInvalidArguments;
   }
   GLint* location = GetSharedMemoryAs<GLint*>(
       c.location_shm_id, c.location_shm_offset, sizeof(GLint));
   if (!location) {
     return error::kOutOfBounds;
   }
   if (*location != -1) {
     return error::kInvalidArguments;
   }
   error::Error error =
       DoGetUniformLocation(program, name_str.c_str(), location);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetVertexAttribPointerv(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetVertexAttribPointerv& c =
-      *static_cast<const gles2::cmds::GetVertexAttribPointerv*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetVertexAttribPointerv& c =
+      *static_cast<const volatile gles2::cmds::GetVertexAttribPointerv*>(
+          cmd_data);
   GLuint index = static_cast<GLuint>(c.index);
   GLenum pname = static_cast<GLenum>(c.pname);
   unsigned int buffer_size = 0;
   typedef cmds::GetVertexAttribPointerv::Result Result;
   Result* result = GetSharedMemoryAndSizeAs<Result*>(
       c.pointer_shm_id, c.pointer_shm_offset, &buffer_size);
   GLuint* params = result ? result->GetData() : NULL;
   GLsizei bufsize = Result::ComputeMaxResults(buffer_size);
   GLsizei length = 0;
   error::Error error =
       DoGetVertexAttribPointerv(index, pname, bufsize, &length, params);
   if (error != error::kNoError) {
     return error;
   }
   if (length > bufsize) {
     return error::kOutOfBounds;
   }
   result->SetNumResults(length);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandlePixelStorei(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::PixelStorei& c =
-      *static_cast<const gles2::cmds::PixelStorei*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::PixelStorei& c =
+      *static_cast<const volatile gles2::cmds::PixelStorei*>(cmd_data);
   GLenum pname = static_cast<GLuint>(c.pname);
   GLint param = static_cast<GLint>(c.param);
   error::Error error = DoPixelStorei(pname, param);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleReadPixels(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::ReadPixels& c =
-      *static_cast<const gles2::cmds::ReadPixels*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::ReadPixels& c =
+      *static_cast<const volatile gles2::cmds::ReadPixels*>(cmd_data);
   GLint x = static_cast<GLint>(c.x);
   GLint y = static_cast<GLint>(c.y);
   GLsizei width = static_cast<GLsizei>(c.width);
   GLsizei height = static_cast<GLsizei>(c.height);
   GLenum format = static_cast<GLenum>(c.format);
   GLenum type = static_cast<GLenum>(c.type);
 
   uint8_t* pixels = nullptr;
   unsigned int buffer_size = 0;
   if (c.pixels_shm_id != 0) {
@@ skipping 32 matching lines @@
     result->success = 1;
     result->row_length = static_cast<uint32_t>(width);
     result->num_rows = static_cast<uint32_t>(height);
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleShaderBinary(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::ShaderBinary& c =
-      *static_cast<const gles2::cmds::ShaderBinary*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::ShaderBinary& c =
+      *static_cast<const volatile gles2::cmds::ShaderBinary*>(cmd_data);
   GLsizei n = static_cast<GLsizei>(c.n);
   GLsizei length = static_cast<GLsizei>(c.length);
   uint32_t data_size;
   if (!SafeMultiplyUint32(n, sizeof(GLuint), &data_size)) {
     return error::kOutOfBounds;
   }
   const GLuint* shaders = GetSharedMemoryAs<const GLuint*>(
       c.shaders_shm_id, c.shaders_shm_offset, data_size);
   GLenum binaryformat = static_cast<GLenum>(c.binaryformat);
   const void* binary = GetSharedMemoryAs<const void*>(
       c.binary_shm_id, c.binary_shm_offset, length);
   if (shaders == NULL || binary == NULL) {
     return error::kOutOfBounds;
   }
 
   error::Error error = DoShaderBinary(n, shaders, binaryformat, binary, length);
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleTexImage2D(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::TexImage2D& c =
-      *static_cast<const gles2::cmds::TexImage2D*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::TexImage2D& c =
+      *static_cast<const volatile gles2::cmds::TexImage2D*>(cmd_data);
   GLenum target = static_cast<GLenum>(c.target);
   GLint level = static_cast<GLint>(c.level);
   GLint internal_format = static_cast<GLint>(c.internalformat);
   GLsizei width = static_cast<GLsizei>(c.width);
   GLsizei height = static_cast<GLsizei>(c.height);
   GLint border = static_cast<GLint>(c.border);
   GLenum format = static_cast<GLenum>(c.format);
   GLenum type = static_cast<GLenum>(c.type);
 
   GLsizei imagesize = 0;
@@ skipping 13 matching lines @@
                    format, type, imagesize, pixels);
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleTexImage3D(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::TexImage3D& c =
-      *static_cast<const gles2::cmds::TexImage3D*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::TexImage3D& c =
+      *static_cast<const volatile gles2::cmds::TexImage3D*>(cmd_data);
   GLenum target = static_cast<GLenum>(c.target);
   GLint level = static_cast<GLint>(c.level);
   GLint internal_format = static_cast<GLint>(c.internalformat);
   GLsizei width = static_cast<GLsizei>(c.width);
   GLsizei height = static_cast<GLsizei>(c.height);
   GLsizei depth = static_cast<GLsizei>(c.depth);
   GLint border = static_cast<GLint>(c.border);
   GLenum format = static_cast<GLenum>(c.format);
   GLenum type = static_cast<GLenum>(c.type);
 
@@ skipping 14 matching lines @@
                    format, type, imagesize, pixels);
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleTexSubImage2D(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::TexSubImage2D& c =
-      *static_cast<const gles2::cmds::TexSubImage2D*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::TexSubImage2D& c =
+      *static_cast<const volatile gles2::cmds::TexSubImage2D*>(cmd_data);
   GLenum target = static_cast<GLenum>(c.target);
   GLint level = static_cast<GLint>(c.level);
   GLint xoffset = static_cast<GLint>(c.xoffset);
   GLint yoffset = static_cast<GLint>(c.yoffset);
   GLsizei width = static_cast<GLsizei>(c.width);
   GLsizei height = static_cast<GLsizei>(c.height);
   GLenum format = static_cast<GLenum>(c.format);
   GLenum type = static_cast<GLenum>(c.type);
 
   unsigned int buffer_size = 0;
   const void* pixels = GetSharedMemoryAndSizeAs<uint8_t*>(
       c.pixels_shm_id, c.pixels_shm_offset, &buffer_size);
   if (!pixels) {
     return error::kOutOfBounds;
   }
   GLsizei imagesize = buffer_size;
 
   error::Error error = DoTexSubImage2D(target, level, xoffset, yoffset, width,
                                        height, format, type, imagesize, pixels);
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleTexSubImage3D(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::TexSubImage3D& c =
-      *static_cast<const gles2::cmds::TexSubImage3D*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::TexSubImage3D& c =
+      *static_cast<const volatile gles2::cmds::TexSubImage3D*>(cmd_data);
   GLenum target = static_cast<GLenum>(c.target);
   GLint level = static_cast<GLint>(c.level);
   GLint xoffset = static_cast<GLint>(c.xoffset);
   GLint yoffset = static_cast<GLint>(c.yoffset);
   GLint zoffset = static_cast<GLint>(c.zoffset);
   GLsizei width = static_cast<GLsizei>(c.width);
   GLsizei height = static_cast<GLsizei>(c.height);
   GLsizei depth = static_cast<GLsizei>(c.depth);
   GLenum format = static_cast<GLenum>(c.format);
   GLenum type = static_cast<GLenum>(c.type);
@@ skipping 11 matching lines @@
                       depth, format, type, imagesize, pixels);
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleUniformBlockBinding(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::UniformBlockBinding& c =
-      *static_cast<const gles2::cmds::UniformBlockBinding*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::UniformBlockBinding& c =
+      *static_cast<const volatile gles2::cmds::UniformBlockBinding*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLuint index = static_cast<GLuint>(c.index);
   GLuint binding = static_cast<GLuint>(c.binding);
 
   error::Error error = DoUniformBlockBinding(program, index, binding);
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleVertexAttribIPointer(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::VertexAttribIPointer& c =
-      *static_cast<const gles2::cmds::VertexAttribIPointer*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::VertexAttribIPointer& c =
+      *static_cast<const volatile gles2::cmds::VertexAttribIPointer*>(cmd_data);
   GLuint index = static_cast<GLuint>(c.indx);
   GLint size = static_cast<GLint>(c.size);
   GLenum type = static_cast<GLenum>(c.type);
   GLsizei stride = static_cast<GLsizei>(c.stride);
   GLsizei offset = static_cast<GLsizei>(c.offset);
   const void* ptr = reinterpret_cast<const void*>(offset);
 
   error::Error error = DoVertexAttribIPointer(index, size, type, stride, ptr);
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleVertexAttribPointer(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::VertexAttribPointer& c =
-      *static_cast<const gles2::cmds::VertexAttribPointer*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::VertexAttribPointer& c =
+      *static_cast<const volatile gles2::cmds::VertexAttribPointer*>(cmd_data);
   GLuint index = static_cast<GLuint>(c.indx);
   GLint size = static_cast<GLint>(c.size);
   GLenum type = static_cast<GLenum>(c.type);
   GLboolean normalized = static_cast<GLenum>(c.normalized);
   GLsizei stride = static_cast<GLsizei>(c.stride);
   GLsizei offset = static_cast<GLsizei>(c.offset);
   const void* ptr = reinterpret_cast<const void*>(offset);
 
   error::Error error =
       DoVertexAttribPointer(index, size, type, normalized, stride, ptr);
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleWaitSync(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::WaitSync& c =
-      *static_cast<const gles2::cmds::WaitSync*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::WaitSync& c =
+      *static_cast<const volatile gles2::cmds::WaitSync*>(cmd_data);
   const GLuint sync = static_cast<GLuint>(c.sync);
   const GLbitfield flags = static_cast<GLbitfield>(c.flags);
   const GLuint64 timeout = c.timeout();
 
   error::Error error = DoWaitSync(sync, flags, timeout);
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleQueryCounterEXT(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::QueryCounterEXT& c =
-      *static_cast<const gles2::cmds::QueryCounterEXT*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::QueryCounterEXT& c =
+      *static_cast<const volatile gles2::cmds::QueryCounterEXT*>(cmd_data);
   GLuint id = static_cast<GLuint>(c.id);
   GLenum target = static_cast<GLenum>(c.target);
 
   error::Error error = DoQueryCounterEXT(id, target);
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleBeginQueryEXT(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::BeginQueryEXT& c =
-      *static_cast<const gles2::cmds::BeginQueryEXT*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::BeginQueryEXT& c =
+      *static_cast<const volatile gles2::cmds::BeginQueryEXT*>(cmd_data);
   GLenum target = static_cast<GLenum>(c.target);
   GLuint id = static_cast<GLuint>(c.id);
 
   error::Error error = DoBeginQueryEXT(target, id);
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleEndQueryEXT(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::EndQueryEXT& c =
-      *static_cast<const gles2::cmds::EndQueryEXT*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::EndQueryEXT& c =
+      *static_cast<const volatile gles2::cmds::EndQueryEXT*>(cmd_data);
   GLenum target = static_cast<GLenum>(c.target);
 
   error::Error error = DoEndQueryEXT(target);
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleSetDisjointValueSyncCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::SetDisjointValueSyncCHROMIUM& c =
-      *static_cast<const gles2::cmds::SetDisjointValueSyncCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::SetDisjointValueSyncCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::SetDisjointValueSyncCHROMIUM*>(
+          cmd_data);
   DisjointValueSync* sync = GetSharedMemoryAs<DisjointValueSync*>(
       c.sync_data_shm_id, c.sync_data_shm_offset, sizeof(*sync));
   if (!sync) {
     return error::kOutOfBounds;
   }
   error::Error error = DoSetDisjointValueSyncCHROMIUM(sync);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleInsertEventMarkerEXT(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::InsertEventMarkerEXT& c =
-      *static_cast<const gles2::cmds::InsertEventMarkerEXT*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::InsertEventMarkerEXT& c =
+      *static_cast<const volatile gles2::cmds::InsertEventMarkerEXT*>(cmd_data);
   GLuint bucket_id = static_cast<GLuint>(c.bucket_id);
   Bucket* bucket = GetBucket(bucket_id);
   if (!bucket || bucket->size() == 0) {
     return error::kInvalidArguments;
   }
   std::string str;
   if (!bucket->GetAsString(&str)) {
     return error::kInvalidArguments;
   }
   error::Error error = DoInsertEventMarkerEXT(0, str.c_str());
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandlePushGroupMarkerEXT(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::PushGroupMarkerEXT& c =
-      *static_cast<const gles2::cmds::PushGroupMarkerEXT*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::PushGroupMarkerEXT& c =
+      *static_cast<const volatile gles2::cmds::PushGroupMarkerEXT*>(cmd_data);
   GLuint bucket_id = static_cast<GLuint>(c.bucket_id);
   Bucket* bucket = GetBucket(bucket_id);
   if (!bucket || bucket->size() == 0) {
     return error::kInvalidArguments;
   }
   std::string str;
   if (!bucket->GetAsString(&str)) {
     return error::kInvalidArguments;
   }
   error::Error error = DoPushGroupMarkerEXT(0, str.c_str());
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleEnableFeatureCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::EnableFeatureCHROMIUM& c =
-      *static_cast<const gles2::cmds::EnableFeatureCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::EnableFeatureCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::EnableFeatureCHROMIUM*>(
+          cmd_data);
   Bucket* bucket = GetBucket(c.bucket_id);
   if (!bucket || bucket->size() == 0) {
     return error::kInvalidArguments;
   }
   typedef cmds::EnableFeatureCHROMIUM::Result Result;
   Result* result = GetSharedMemoryAs<Result*>(
       c.result_shm_id, c.result_shm_offset, sizeof(*result));
   if (!result) {
     return error::kOutOfBounds;
   }
   // Check that the client initialized the result.
   if (*result != 0) {
     return error::kInvalidArguments;
   }
   std::string feature_str;
   if (!bucket->GetAsString(&feature_str)) {
     return error::kInvalidArguments;
   }
   error::Error error = DoEnableFeatureCHROMIUM(feature_str.c_str());
   if (error != error::kNoError) {
     return error;
   }
 
   *result = 1;  // true.
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleMapBufferRange(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::MapBufferRange& c =
-      *static_cast<const gles2::cmds::MapBufferRange*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::MapBufferRange& c =
+      *static_cast<const volatile gles2::cmds::MapBufferRange*>(cmd_data);
   GLenum target = static_cast<GLenum>(c.target);
   GLbitfield access = static_cast<GLbitfield>(c.access);
   GLintptr offset = static_cast<GLintptr>(c.offset);
   GLsizeiptr size = static_cast<GLsizeiptr>(c.size);
 
   typedef cmds::MapBufferRange::Result Result;
   Result* result = GetSharedMemoryAs<Result*>(
       c.result_shm_id, c.result_shm_offset, sizeof(*result));
   if (!result) {
     return error::kOutOfBounds;
@@ skipping 13 matching lines @@
   if (error != error::kNoError) {
     return error;
   }
 
   *result = 1;
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleUnmapBuffer(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::UnmapBuffer& c =
-      *static_cast<const gles2::cmds::UnmapBuffer*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::UnmapBuffer& c =
+      *static_cast<const volatile gles2::cmds::UnmapBuffer*>(cmd_data);
   GLenum target = static_cast<GLenum>(c.target);
   error::Error error = DoUnmapBuffer(target);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleResizeCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::ResizeCHROMIUM& c =
-      *static_cast<const gles2::cmds::ResizeCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::ResizeCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::ResizeCHROMIUM*>(cmd_data);
   GLuint width = static_cast<GLuint>(c.width);
   GLuint height = static_cast<GLuint>(c.height);
   GLfloat scale_factor = static_cast<GLfloat>(c.scale_factor);
   GLboolean has_alpha = static_cast<GLboolean>(c.alpha);
   error::Error error = DoResizeCHROMIUM(width, height, scale_factor, has_alpha);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderPassthroughImpl::HandleGetRequestableExtensionsCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetRequestableExtensionsCHROMIUM& c =
-      *static_cast<const gles2::cmds::GetRequestableExtensionsCHROMIUM*>(
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetRequestableExtensionsCHROMIUM& c =
+      *static_cast<
+          const volatile gles2::cmds::GetRequestableExtensionsCHROMIUM*>(
           cmd_data);
   const char* str = nullptr;
   error::Error error = DoGetRequestableExtensionsCHROMIUM(&str);
   if (error != error::kNoError) {
     return error;
   }
   if (!str) {
     return error::kOutOfBounds;
   }
   Bucket* bucket = CreateBucket(c.bucket_id);
   bucket->SetFromString(str);
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleRequestExtensionCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::RequestExtensionCHROMIUM& c =
-      *static_cast<const gles2::cmds::RequestExtensionCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::RequestExtensionCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::RequestExtensionCHROMIUM*>(
+          cmd_data);
   Bucket* bucket = GetBucket(c.bucket_id);
   if (!bucket || bucket->size() == 0) {
     return error::kInvalidArguments;
   }
   std::string feature_str;
   if (!bucket->GetAsString(&feature_str)) {
     return error::kInvalidArguments;
   }
   error::Error error = DoRequestExtensionCHROMIUM(feature_str.c_str());
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetProgramInfoCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetProgramInfoCHROMIUM& c =
-      *static_cast<const gles2::cmds::GetProgramInfoCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetProgramInfoCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::GetProgramInfoCHROMIUM*>(
+          cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
 
   uint32_t bucket_id = c.bucket_id;
   Bucket* bucket = CreateBucket(bucket_id);
   bucket->SetSize(sizeof(ProgramInfoHeader));  // in case we fail.
 
   std::vector<uint8_t> data;
   error::Error error = DoGetProgramInfoCHROMIUM(program, &data);
   if (error != error::kNoError) {
     return error;
   }
 
   bucket->SetSize(data.size());
   bucket->SetData(data.data(), 0, data.size());
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetUniformBlocksCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetUniformBlocksCHROMIUM& c =
-      *static_cast<const gles2::cmds::GetUniformBlocksCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetUniformBlocksCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::GetUniformBlocksCHROMIUM*>(
+          cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
 
   uint32_t bucket_id = c.bucket_id;
   Bucket* bucket = CreateBucket(bucket_id);
   bucket->SetSize(sizeof(UniformBlocksHeader));  // in case we fail.
 
   std::vector<uint8_t> data;
   error::Error error = DoGetUniformBlocksCHROMIUM(program, &data);
   if (error != error::kNoError) {
     return error;
   }
 
   bucket->SetSize(data.size());
   bucket->SetData(data.data(), 0, data.size());
 
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderPassthroughImpl::HandleGetTransformFeedbackVaryingsCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetTransformFeedbackVaryingsCHROMIUM& c =
-      *static_cast<const gles2::cmds::GetTransformFeedbackVaryingsCHROMIUM*>(
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetTransformFeedbackVaryingsCHROMIUM& c =
+      *static_cast<
+          const volatile gles2::cmds::GetTransformFeedbackVaryingsCHROMIUM*>(
           cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
 
   uint32_t bucket_id = c.bucket_id;
   Bucket* bucket = CreateBucket(bucket_id);
   bucket->SetSize(sizeof(TransformFeedbackVaryingsHeader));  // in case we fail.
 
   std::vector<uint8_t> data;
   error::Error error = DoGetTransformFeedbackVaryingsCHROMIUM(program, &data);
   if (error != error::kNoError) {
     return error;
   }
 
   bucket->SetSize(data.size());
   bucket->SetData(data.data(), 0, data.size());
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetUniformsES3CHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetUniformsES3CHROMIUM& c =
-      *static_cast<const gles2::cmds::GetUniformsES3CHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetUniformsES3CHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::GetUniformsES3CHROMIUM*>(
+          cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
 
   uint32_t bucket_id = c.bucket_id;
   Bucket* bucket = CreateBucket(bucket_id);
   bucket->SetSize(sizeof(UniformsES3Header));  // in case we fail.
 
   std::vector<uint8_t> data;
   error::Error error = DoGetUniformsES3CHROMIUM(program, &data);
   if (error != error::kNoError) {
     return error;
   }
 
   bucket->SetSize(data.size());
   bucket->SetData(data.data(), 0, data.size());
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetTranslatedShaderSourceANGLE(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetTranslatedShaderSourceANGLE& c =
-      *static_cast<const gles2::cmds::GetTranslatedShaderSourceANGLE*>(
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetTranslatedShaderSourceANGLE& c =
+      *static_cast<const volatile gles2::cmds::GetTranslatedShaderSourceANGLE*>(
           cmd_data);
   GLuint shader = static_cast<GLuint>(c.shader);
 
   std::string source;
   error::Error error = DoGetTranslatedShaderSourceANGLE(shader, &source);
   if (error != error::kNoError) {
     return error;
   }
 
   Bucket* bucket = CreateBucket(c.bucket_id);
   bucket->SetFromString(source.c_str());
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandlePostSubBufferCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::PostSubBufferCHROMIUM& c =
-      *static_cast<const gles2::cmds::PostSubBufferCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::PostSubBufferCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::PostSubBufferCHROMIUM*>(
+          cmd_data);
   GLint x = static_cast<GLint>(c.x);
   GLint y = static_cast<GLint>(c.y);
   GLint width = static_cast<GLint>(c.width);
   GLint height = static_cast<GLint>(c.height);
   error::Error error = DoPostSubBufferCHROMIUM(x, y, width, height);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleDrawArraysInstancedANGLE(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::DrawArraysInstancedANGLE& c =
-      *static_cast<const gles2::cmds::DrawArraysInstancedANGLE*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::DrawArraysInstancedANGLE& c =
+      *static_cast<const volatile gles2::cmds::DrawArraysInstancedANGLE*>(
+          cmd_data);
   GLenum mode = static_cast<GLenum>(c.mode);
   GLint first = static_cast<GLint>(c.first);
   GLsizei count = static_cast<GLsizei>(c.count);
   GLsizei primcount = static_cast<GLsizei>(c.primcount);
   error::Error error =
       DoDrawArraysInstancedANGLE(mode, first, count, primcount);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleDrawElementsInstancedANGLE(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::DrawElementsInstancedANGLE& c =
-      *static_cast<const gles2::cmds::DrawElementsInstancedANGLE*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::DrawElementsInstancedANGLE& c =
+      *static_cast<const volatile gles2::cmds::DrawElementsInstancedANGLE*>(
+          cmd_data);
   GLenum mode = static_cast<GLenum>(c.mode);
   GLsizei count = static_cast<GLsizei>(c.count);
   GLenum type = static_cast<GLenum>(c.type);
   const GLvoid* indices =
       reinterpret_cast<const GLvoid*>(static_cast<uintptr_t>(c.index_offset));
   GLsizei primcount = static_cast<GLsizei>(c.primcount);
   error::Error error =
       DoDrawElementsInstancedANGLE(mode, count, type, indices, primcount);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleVertexAttribDivisorANGLE(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::VertexAttribDivisorANGLE& c =
-      *static_cast<const gles2::cmds::VertexAttribDivisorANGLE*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::VertexAttribDivisorANGLE& c =
+      *static_cast<const volatile gles2::cmds::VertexAttribDivisorANGLE*>(
+          cmd_data);
   GLuint index = static_cast<GLuint>(c.index);
   GLuint divisor = static_cast<GLuint>(c.divisor);
   error::Error error = DoVertexAttribDivisorANGLE(index, divisor);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderPassthroughImpl::HandleBindUniformLocationCHROMIUMBucket(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::BindUniformLocationCHROMIUMBucket& c =
-      *static_cast<const gles2::cmds::BindUniformLocationCHROMIUMBucket*>(
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::BindUniformLocationCHROMIUMBucket& c =
+      *static_cast<
+          const volatile gles2::cmds::BindUniformLocationCHROMIUMBucket*>(
           cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLint location = static_cast<GLint>(c.location);
   Bucket* bucket = GetBucket(c.name_bucket_id);
   if (!bucket || bucket->size() == 0) {
     return error::kInvalidArguments;
   }
   std::string name_str;
   if (!bucket->GetAsString(&name_str)) {
     return error::kInvalidArguments;
   }
   error::Error error =
       DoBindUniformLocationCHROMIUM(program, location, name_str.c_str());
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleTraceBeginCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::TraceBeginCHROMIUM& c =
-      *static_cast<const gles2::cmds::TraceBeginCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::TraceBeginCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::TraceBeginCHROMIUM*>(cmd_data);
   Bucket* category_bucket = GetBucket(c.category_bucket_id);
   Bucket* name_bucket = GetBucket(c.name_bucket_id);
   if (!category_bucket || category_bucket->size() == 0 || !name_bucket ||
       name_bucket->size() == 0) {
     return error::kInvalidArguments;
   }
 
   std::string category_name;
   std::string trace_name;
   if (!category_bucket->GetAsString(&category_name) ||
       !name_bucket->GetAsString(&trace_name)) {
     return error::kInvalidArguments;
   }
 
   error::Error error =
       DoTraceBeginCHROMIUM(category_name.c_str(), trace_name.c_str());
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleDescheduleUntilFinishedCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::DescheduleUntilFinishedCHROMIUM& c =
-      *static_cast<const gles2::cmds::DescheduleUntilFinishedCHROMIUM*>(
-          cmd_data);
-  (void)c;
-
+    const volatile void* cmd_data) {
   error::Error error = DoDescheduleUntilFinishedCHROMIUM();
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleInsertFenceSyncCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::InsertFenceSyncCHROMIUM& c =
-      *static_cast<const gles2::cmds::InsertFenceSyncCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::InsertFenceSyncCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::InsertFenceSyncCHROMIUM*>(
+          cmd_data);
   GLuint64 release_count = c.release_count();
   error::Error error = DoInsertFenceSyncCHROMIUM(release_count);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleWaitSyncTokenCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::WaitSyncTokenCHROMIUM& c =
-      *static_cast<const gles2::cmds::WaitSyncTokenCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::WaitSyncTokenCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::WaitSyncTokenCHROMIUM*>(
+          cmd_data);
   CommandBufferNamespace namespace_id =
       static_cast<gpu::CommandBufferNamespace>(c.namespace_id);
   CommandBufferId command_buffer_id =
       CommandBufferId::FromUnsafeValue(c.command_buffer_id());
   const uint64_t release_count = c.release_count();
 
   const CommandBufferNamespace kMinNamespaceId =
       CommandBufferNamespace::INVALID;
   const CommandBufferNamespace kMaxNamespaceId =
       CommandBufferNamespace::NUM_COMMAND_BUFFER_NAMESPACES;
   if ((namespace_id < static_cast<int32_t>(kMinNamespaceId)) ||
       (namespace_id >= static_cast<int32_t>(kMaxNamespaceId))) {
     namespace_id = gpu::CommandBufferNamespace::INVALID;
   }
 
   error::Error error =
       DoWaitSyncTokenCHROMIUM(namespace_id, command_buffer_id, release_count);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleDiscardBackbufferCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::DiscardBackbufferCHROMIUM& c =
-      *static_cast<const gles2::cmds::DiscardBackbufferCHROMIUM*>(cmd_data);
-  (void)c;
+    const volatile void* cmd_data) {
   error::Error error = DoDiscardBackbufferCHROMIUM();
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleScheduleOverlayPlaneCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::ScheduleOverlayPlaneCHROMIUM& c =
-      *static_cast<const gles2::cmds::ScheduleOverlayPlaneCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::ScheduleOverlayPlaneCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::ScheduleOverlayPlaneCHROMIUM*>(
+          cmd_data);
   GLint plane_z_order = static_cast<GLint>(c.plane_z_order);
   GLenum plane_transform = static_cast<GLenum>(c.plane_transform);
   GLuint overlay_texture_id = static_cast<GLuint>(c.overlay_texture_id);
   GLint bounds_x = static_cast<GLint>(c.bounds_x);
   GLint bounds_y = static_cast<GLint>(c.bounds_y);
   GLint bounds_width = static_cast<GLint>(c.bounds_width);
   GLint bounds_height = static_cast<GLint>(c.bounds_height);
   GLfloat uv_x = static_cast<GLfloat>(c.uv_x);
   GLfloat uv_y = static_cast<GLfloat>(c.uv_x);
   GLfloat uv_width = static_cast<GLfloat>(c.uv_x);
   GLfloat uv_height = static_cast<GLfloat>(c.uv_x);
   error::Error error = DoScheduleOverlayPlaneCHROMIUM(
       plane_z_order, plane_transform, overlay_texture_id, bounds_x, bounds_y,
       bounds_width, bounds_height, uv_x, uv_y, uv_width, uv_height);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderPassthroughImpl::HandleScheduleCALayerSharedStateCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::ScheduleCALayerSharedStateCHROMIUM& c =
-      *static_cast<const gles2::cmds::ScheduleCALayerSharedStateCHROMIUM*>(
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::ScheduleCALayerSharedStateCHROMIUM& c =
+      *static_cast<
+          const volatile gles2::cmds::ScheduleCALayerSharedStateCHROMIUM*>(
           cmd_data);
   const GLfloat* mem = GetSharedMemoryAs<const GLfloat*>(c.shm_id, c.shm_offset,
                                                          20 * sizeof(GLfloat));
   if (!mem) {
     return error::kOutOfBounds;
   }
   GLfloat opacity = static_cast<GLfloat>(c.opacity);
   GLboolean is_clipped = static_cast<GLboolean>(c.is_clipped);
   const GLfloat* clip_rect = mem + 0;
   GLint sorting_context_id = static_cast<GLint>(c.sorting_context_id);
   const GLfloat* transform = mem + 4;
   error::Error error = DoScheduleCALayerSharedStateCHROMIUM(
       opacity, is_clipped, clip_rect, sorting_context_id, transform);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleScheduleCALayerCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::ScheduleCALayerCHROMIUM& c =
-      *static_cast<const gles2::cmds::ScheduleCALayerCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::ScheduleCALayerCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::ScheduleCALayerCHROMIUM*>(
+          cmd_data);
   const GLfloat* mem = GetSharedMemoryAs<const GLfloat*>(c.shm_id, c.shm_offset,
                                                          8 * sizeof(GLfloat));
   if (!mem) {
     return error::kOutOfBounds;
   }
   GLuint contents_texture_id = static_cast<GLint>(c.contents_texture_id);
   const GLfloat* contents_rect = mem;
   GLuint background_color = static_cast<GLuint>(c.background_color);
   GLuint edge_aa_mask = static_cast<GLuint>(c.edge_aa_mask);
   const GLfloat* bounds_rect = mem + 4;
   error::Error error =
       DoScheduleCALayerCHROMIUM(contents_texture_id, contents_rect,
                                 background_color, edge_aa_mask, bounds_rect);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGenPathsCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GenPathsCHROMIUM& c =
-      *static_cast<const gles2::cmds::GenPathsCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GenPathsCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::GenPathsCHROMIUM*>(cmd_data);
   GLuint path = static_cast<GLuint>(c.first_client_id);
   GLsizei range = static_cast<GLsizei>(c.range);
   error::Error error = DoGenPathsCHROMIUM(path, range);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleDeletePathsCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::DeletePathsCHROMIUM& c =
-      *static_cast<const gles2::cmds::DeletePathsCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::DeletePathsCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::DeletePathsCHROMIUM*>(cmd_data);
   GLuint path = static_cast<GLuint>(c.first_client_id);
   GLsizei range = static_cast<GLsizei>(c.range);
   error::Error error = DoDeletePathsCHROMIUM(path, range);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandlePathCommandsCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::PathCommandsCHROMIUM& c =
-      *static_cast<const gles2::cmds::PathCommandsCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::PathCommandsCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::PathCommandsCHROMIUM*>(cmd_data);
   GLuint path = static_cast<GLuint>(c.path);
   GLsizei num_commands = static_cast<GLsizei>(c.numCommands);
   const GLubyte* commands = nullptr;
   if (num_commands > 0) {
     uint32_t commands_shm_id = static_cast<uint32_t>(c.commands_shm_id);
     uint32_t commands_shm_offset = static_cast<uint32_t>(c.commands_shm_offset);
     if (commands_shm_id != 0 || commands_shm_offset != 0) {
       commands = GetSharedMemoryAs<const GLubyte*>(
           commands_shm_id, commands_shm_offset, num_commands);
     }
@@ skipping 25 matching lines @@
                              coord_type, coords, coords_bufsize);
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandlePathParameterfCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::PathParameterfCHROMIUM& c =
-      *static_cast<const gles2::cmds::PathParameterfCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::PathParameterfCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::PathParameterfCHROMIUM*>(
+          cmd_data);
   GLuint path = static_cast<GLuint>(c.path);
   GLenum pname = static_cast<GLenum>(c.pname);
   GLfloat value = static_cast<GLfloat>(c.value);
   error::Error error = DoPathParameterfCHROMIUM(path, pname, value);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandlePathParameteriCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::PathParameteriCHROMIUM& c =
-      *static_cast<const gles2::cmds::PathParameteriCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::PathParameteriCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::PathParameteriCHROMIUM*>(
+          cmd_data);
   GLuint path = static_cast<GLuint>(c.path);
   GLenum pname = static_cast<GLenum>(c.pname);
   GLint value = static_cast<GLint>(c.value);
   error::Error error = DoPathParameteriCHROMIUM(path, pname, value);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleStencilFillPathCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::StencilFillPathCHROMIUM& c =
-      *static_cast<const gles2::cmds::StencilFillPathCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::StencilFillPathCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::StencilFillPathCHROMIUM*>(
+          cmd_data);
   GLuint path = static_cast<GLuint>(c.path);
   GLenum fill_mode = static_cast<GLenum>(c.fillMode);
   GLuint mask = static_cast<GLuint>(c.mask);
   error::Error error = DoStencilFillPathCHROMIUM(path, fill_mode, mask);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleStencilStrokePathCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::StencilStrokePathCHROMIUM& c =
-      *static_cast<const gles2::cmds::StencilStrokePathCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::StencilStrokePathCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::StencilStrokePathCHROMIUM*>(
+          cmd_data);
   GLuint path = static_cast<GLuint>(c.path);
   GLint reference = static_cast<GLint>(c.reference);
   GLuint mask = static_cast<GLuint>(c.mask);
   error::Error error = DoStencilStrokePathCHROMIUM(path, reference, mask);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleCoverFillPathCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::CoverFillPathCHROMIUM& c =
-      *static_cast<const gles2::cmds::CoverFillPathCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::CoverFillPathCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::CoverFillPathCHROMIUM*>(
+          cmd_data);
   GLuint path = static_cast<GLuint>(c.path);
   GLenum cover_mode = static_cast<GLenum>(c.coverMode);
   error::Error error = DoCoverFillPathCHROMIUM(path, cover_mode);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleCoverStrokePathCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::CoverStrokePathCHROMIUM& c =
-      *static_cast<const gles2::cmds::CoverStrokePathCHROMIUM*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::CoverStrokePathCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::CoverStrokePathCHROMIUM*>(
+          cmd_data);
   GLuint path = static_cast<GLuint>(c.path);
   GLenum cover_mode = static_cast<GLenum>(c.coverMode);
   error::Error error = DoCoverStrokePathCHROMIUM(path, cover_mode);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderPassthroughImpl::HandleStencilThenCoverFillPathCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::StencilThenCoverFillPathCHROMIUM& c =
-      *static_cast<const gles2::cmds::StencilThenCoverFillPathCHROMIUM*>(
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::StencilThenCoverFillPathCHROMIUM& c =
+      *static_cast<
+          const volatile gles2::cmds::StencilThenCoverFillPathCHROMIUM*>(
           cmd_data);
   GLuint path = static_cast<GLuint>(c.path);
   GLenum fill_mode = static_cast<GLenum>(c.fillMode);
   GLuint mask = static_cast<GLuint>(c.mask);
   GLenum cover_mode = static_cast<GLenum>(c.coverMode);
   error::Error error =
       DoStencilThenCoverFillPathCHROMIUM(path, fill_mode, mask, cover_mode);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderPassthroughImpl::HandleStencilThenCoverStrokePathCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::StencilThenCoverStrokePathCHROMIUM& c =
-      *static_cast<const gles2::cmds::StencilThenCoverStrokePathCHROMIUM*>(
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::StencilThenCoverStrokePathCHROMIUM& c =
+      *static_cast<
+          const volatile gles2::cmds::StencilThenCoverStrokePathCHROMIUM*>(
           cmd_data);
   GLuint path = static_cast<GLuint>(c.path);
   GLint reference = static_cast<GLint>(c.reference);
   GLuint mask = static_cast<GLuint>(c.mask);
   GLenum cover_mode = static_cast<GLenum>(c.coverMode);
   error::Error error =
       DoStencilThenCoverStrokePathCHROMIUM(path, reference, mask, cover_mode);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderPassthroughImpl::HandleStencilFillPathInstancedCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::StencilFillPathInstancedCHROMIUM& c =
-      *static_cast<const gles2::cmds::StencilFillPathInstancedCHROMIUM*>(
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::StencilFillPathInstancedCHROMIUM& c =
+      *static_cast<
+          const volatile gles2::cmds::StencilFillPathInstancedCHROMIUM*>(
           cmd_data);
   GLsizei num_paths = static_cast<GLsizei>(c.numPaths);
   GLenum path_name_type = static_cast<GLuint>(c.pathNameType);
   const GLvoid* paths = nullptr;
   GLsizei paths_bufsize = 0;
   if (num_paths > 0) {
     uint32_t paths_shm_id = static_cast<uint32_t>(c.paths_shm_id);
     uint32_t paths_shm_offset = static_cast<uint32_t>(c.paths_shm_offset);
     if (paths_shm_id != 0 || paths_shm_offset != 0) {
       unsigned int memory_size = 0;
@@ skipping 28 matching lines @@
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderPassthroughImpl::HandleStencilStrokePathInstancedCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::StencilStrokePathInstancedCHROMIUM& c =
-      *static_cast<const gles2::cmds::StencilStrokePathInstancedCHROMIUM*>(
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::StencilStrokePathInstancedCHROMIUM& c =
+      *static_cast<
+          const volatile gles2::cmds::StencilStrokePathInstancedCHROMIUM*>(
           cmd_data);
   GLsizei num_paths = static_cast<GLsizei>(c.numPaths);
   GLenum path_name_type = static_cast<GLuint>(c.pathNameType);
   const GLvoid* paths = nullptr;
   GLsizei paths_bufsize = 0;
   if (num_paths > 0) {
     uint32_t paths_shm_id = static_cast<uint32_t>(c.paths_shm_id);
     uint32_t paths_shm_offset = static_cast<uint32_t>(c.paths_shm_offset);
     if (paths_shm_id != 0 || paths_shm_offset != 0) {
       unsigned int memory_size = 0;
@@ skipping 27 matching lines @@
       mask, transform_type, transform_values, transform_values_bufsize);
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleCoverFillPathInstancedCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::CoverFillPathInstancedCHROMIUM& c =
-      *static_cast<const gles2::cmds::CoverFillPathInstancedCHROMIUM*>(
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::CoverFillPathInstancedCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::CoverFillPathInstancedCHROMIUM*>(
           cmd_data);
   GLsizei num_paths = static_cast<GLsizei>(c.numPaths);
   GLenum path_name_type = static_cast<GLuint>(c.pathNameType);
   const GLvoid* paths = nullptr;
   GLsizei paths_bufsize = 0;
   if (num_paths > 0) {
     uint32_t paths_shm_id = static_cast<uint32_t>(c.paths_shm_id);
     uint32_t paths_shm_offset = static_cast<uint32_t>(c.paths_shm_offset);
     if (paths_shm_id != 0 || paths_shm_offset != 0) {
       unsigned int memory_size = 0;
@@ skipping 27 matching lines @@
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderPassthroughImpl::HandleCoverStrokePathInstancedCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::CoverStrokePathInstancedCHROMIUM& c =
-      *static_cast<const gles2::cmds::CoverStrokePathInstancedCHROMIUM*>(
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::CoverStrokePathInstancedCHROMIUM& c =
+      *static_cast<
+          const volatile gles2::cmds::CoverStrokePathInstancedCHROMIUM*>(
           cmd_data);
   GLsizei num_paths = static_cast<GLsizei>(c.numPaths);
   GLenum path_name_type = static_cast<GLuint>(c.pathNameType);
   const GLvoid* paths = nullptr;
   GLsizei paths_bufsize = 0;
   if (num_paths > 0) {
     uint32_t paths_shm_id = static_cast<uint32_t>(c.paths_shm_id);
     uint32_t paths_shm_offset = static_cast<uint32_t>(c.paths_shm_offset);
     if (paths_shm_id != 0 || paths_shm_offset != 0) {
       unsigned int memory_size = 0;
@@ skipping 27 matching lines @@
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderPassthroughImpl::HandleStencilThenCoverFillPathInstancedCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::StencilThenCoverFillPathInstancedCHROMIUM& c =
-      *static_cast<
-          const gles2::cmds::StencilThenCoverFillPathInstancedCHROMIUM*>(
-          cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::StencilThenCoverFillPathInstancedCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::
+                       StencilThenCoverFillPathInstancedCHROMIUM*>(cmd_data);
   GLsizei num_paths = static_cast<GLsizei>(c.numPaths);
   GLenum path_name_type = static_cast<GLuint>(c.pathNameType);
   const GLvoid* paths = nullptr;
   GLsizei paths_bufsize = 0;
   if (num_paths > 0) {
     uint32_t paths_shm_id = static_cast<uint32_t>(c.paths_shm_id);
     uint32_t paths_shm_offset = static_cast<uint32_t>(c.paths_shm_offset);
     if (paths_shm_id != 0 || paths_shm_offset != 0) {
       unsigned int memory_size = 0;
       paths = GetSharedMemoryAndSizeAs<const GLvoid*>(
@@ skipping 29 matching lines @@
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderPassthroughImpl::HandleStencilThenCoverStrokePathInstancedCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::StencilThenCoverStrokePathInstancedCHROMIUM& c =
-      *static_cast<
-          const gles2::cmds::StencilThenCoverStrokePathInstancedCHROMIUM*>(
-          cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::StencilThenCoverStrokePathInstancedCHROMIUM& c =
+      *static_cast<const volatile gles2::cmds::
+                       StencilThenCoverStrokePathInstancedCHROMIUM*>(cmd_data);
   GLsizei num_paths = static_cast<GLsizei>(c.numPaths);
   GLenum path_name_type = static_cast<GLuint>(c.pathNameType);
   const GLvoid* paths = nullptr;
   GLsizei paths_bufsize = 0;
   if (num_paths > 0) {
     uint32_t paths_shm_id = static_cast<uint32_t>(c.paths_shm_id);
     uint32_t paths_shm_offset = static_cast<uint32_t>(c.paths_shm_offset);
     if (paths_shm_id != 0 || paths_shm_offset != 0) {
       unsigned int memory_size = 0;
       paths = GetSharedMemoryAndSizeAs<const GLvoid*>(
@@ skipping 29 matching lines @@
   if (error != error::kNoError) {
     return error;
   }
 
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderPassthroughImpl::HandleBindFragmentInputLocationCHROMIUMBucket(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::BindFragmentInputLocationCHROMIUMBucket& c =
-      *static_cast<const gles2::cmds::BindFragmentInputLocationCHROMIUMBucket*>(
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::BindFragmentInputLocationCHROMIUMBucket& c =
+      *static_cast<
+          const volatile gles2::cmds::BindFragmentInputLocationCHROMIUMBucket*>(
           cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLint location = static_cast<GLint>(c.location);
   Bucket* bucket = GetBucket(c.name_bucket_id);
   if (!bucket || bucket->size() == 0) {
     return error::kInvalidArguments;
   }
   std::string name_str;
   if (!bucket->GetAsString(&name_str)) {
     return error::kInvalidArguments;
   }
   error::Error error =
       DoBindFragmentInputLocationCHROMIUM(program, location, name_str.c_str());
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderPassthroughImpl::HandleProgramPathFragmentInputGenCHROMIUM(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::ProgramPathFragmentInputGenCHROMIUM& c =
-      *static_cast<const gles2::cmds::ProgramPathFragmentInputGenCHROMIUM*>(
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::ProgramPathFragmentInputGenCHROMIUM& c =
+      *static_cast<
+          const volatile gles2::cmds::ProgramPathFragmentInputGenCHROMIUM*>(
           cmd_data);
   GLint program = static_cast<GLint>(c.program);
   GLint location = static_cast<GLint>(c.location);
   GLenum gen_mode = static_cast<GLint>(c.genMode);
   GLint components = static_cast<GLint>(c.components);
   const GLfloat* coeffs = nullptr;
   GLsizei coeffs_bufsize = 0;
   if (c.coeffs_shm_id != 0 || c.coeffs_shm_offset != 0) {
     unsigned int memory_size = 0;
     coeffs = GetSharedMemoryAndSizeAs<const GLfloat*>(
         c.coeffs_shm_id, c.coeffs_shm_offset, &memory_size);
     coeffs_bufsize = static_cast<GLsizei>(memory_size);
   }
   if (!coeffs) {
     return error::kOutOfBounds;
   }
   error::Error error = DoProgramPathFragmentInputGenCHROMIUM(
       program, location, gen_mode, components, coeffs, coeffs_bufsize);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error
 GLES2DecoderPassthroughImpl::HandleBindFragDataLocationIndexedEXTBucket(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::BindFragDataLocationIndexedEXTBucket& c =
-      *static_cast<const gles2::cmds::BindFragDataLocationIndexedEXTBucket*>(
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::BindFragDataLocationIndexedEXTBucket& c =
+      *static_cast<
+          const volatile gles2::cmds::BindFragDataLocationIndexedEXTBucket*>(
           cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLuint colorNumber = static_cast<GLuint>(c.colorNumber);
   GLuint index = static_cast<GLuint>(c.index);
   Bucket* bucket = GetBucket(c.name_bucket_id);
   if (!bucket || bucket->size() == 0) {
     return error::kInvalidArguments;
   }
   std::string name_str;
   if (!bucket->GetAsString(&name_str)) {
     return error::kInvalidArguments;
   }
   error::Error error = DoBindFragDataLocationIndexedEXT(
       program, colorNumber, index, name_str.c_str());
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleBindFragDataLocationEXTBucket(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::BindFragDataLocationEXTBucket& c =
-      *static_cast<const gles2::cmds::BindFragDataLocationEXTBucket*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::BindFragDataLocationEXTBucket& c =
+      *static_cast<const volatile gles2::cmds::BindFragDataLocationEXTBucket*>(
+          cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   GLuint colorNumber = static_cast<GLuint>(c.colorNumber);
   Bucket* bucket = GetBucket(c.name_bucket_id);
   if (!bucket || bucket->size() == 0) {
     return error::kInvalidArguments;
   }
   std::string name_str;
   if (!bucket->GetAsString(&name_str)) {
     return error::kInvalidArguments;
   }
   error::Error error =
       DoBindFragDataLocationEXT(program, colorNumber, name_str.c_str());
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderPassthroughImpl::HandleGetFragDataIndexEXT(
     uint32_t immediate_data_size,
-    const void* cmd_data) {
-  const gles2::cmds::GetFragDataIndexEXT& c =
-      *static_cast<const gles2::cmds::GetFragDataIndexEXT*>(cmd_data);
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::GetFragDataIndexEXT& c =
+      *static_cast<const volatile gles2::cmds::GetFragDataIndexEXT*>(cmd_data);
   GLuint program = static_cast<GLuint>(c.program);
   Bucket* bucket = GetBucket(c.name_bucket_id);
   if (!bucket) {
     return error::kInvalidArguments;
   }
   std::string name_str;
   if (!bucket->GetAsString(&name_str)) {
     return error::kInvalidArguments;
   }
   GLint* index = GetSharedMemoryAs<GLint*>(c.index_shm_id, c.index_shm_offset,
                                            sizeof(GLint));
   if (!index) {
     return error::kOutOfBounds;
   }
   // Check that the client initialized the result.
   if (*index != -1) {
     return error::kInvalidArguments;
   }
   error::Error error = DoGetFragDataIndexEXT(program, name_str.c_str(), index);
   if (error != error::kNoError) {
     return error;
   }
   return error::kNoError;
 }
 
 }  // namespace gles2
 }  // namespace gpu