Android: Restrict virtual contexts on NVIDIA to Nexus 7.

content/gpu/gpu_info_collector_android.cc

 // Copyright (c) 2012 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 "content/gpu/gpu_info_collector.h"
 
 #include "base/android/build_info.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
@@ skipping 53 matching lines @@
   gpu_info->can_lose_context = false;
   // Create a short-lived context on the UI thread to collect the GL strings.
   if (!CollectGraphicsInfoGL(gpu_info))
     return false;
 
   std::string vendor(StringToLowerASCII(gpu_info->gl_vendor));
   std::string renderer(StringToLowerASCII(gpu_info->gl_renderer));
   bool is_img = vendor.find("imagination") != std::string::npos;
   bool is_arm = vendor.find("arm") != std::string::npos;
   bool is_qualcomm = vendor.find("qualcomm") != std::string::npos;
-  bool is_nvidia = vendor.find("nvidia") != std::string::npos;
   bool is_mali_t604 = is_arm && renderer.find("mali-t604") != std::string::npos;
 
-  bool sdk_17_or_greater =
-      base::android::BuildInfo::GetInstance()->sdk_int() >= 17;
+  base::android::BuildInfo* build_info =
+      base::android::BuildInfo::GetInstance();
+  std::string model = build_info->model();
+  model = StringToLowerASCII(model);
+  bool is_nexus7 = model.find("nexus 7") != std::string::npos;
 
   // IMG: avoid context switching perf problems, crashes with share groups
   // Mali-T604: http://crbug.com/154715
   // QualComm, NVIDIA: Crashes with share groups
-  if (is_img || is_mali_t604 || is_qualcomm ||
-      (is_nvidia && sdk_17_or_greater)) {
+  if (is_img || is_mali_t604 || is_qualcomm || is_nexus7) {
     CommandLine::ForCurrentProcess()->AppendSwitch(
         switches::kEnableVirtualGLContexts);
   }
 
   int default_tile_size = 256;
 
   // IMG: Fast async texture uploads only work with non-power-of-two,
   // but still multiple-of-eight sizes.
   // http://crbug.com/168099
   if (is_img)
@@ skipping 22 matching lines @@
       gpu_info->gl_version_string);
   return true;
 }
 
 void MergeGPUInfo(content::GPUInfo* basic_gpu_info,
                   const content::GPUInfo& context_gpu_info) {
   MergeGPUInfoGL(basic_gpu_info, context_gpu_info);
 }
 
 }  // namespace gpu_info_collector