GLES ProgramCache listens to memory pressure

gpu/command_buffer/common/constants.h

 // 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.
 
 #ifndef GPU_COMMAND_BUFFER_COMMON_CONSTANTS_H_
 #define GPU_COMMAND_BUFFER_COMMON_CONSTANTS_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
+#include "build/build_config.h"
+
 namespace gpu {
 
 typedef int32_t CommandBufferOffset;
 const CommandBufferOffset kInvalidCommandBufferOffset = -1;
 
 namespace error {
   enum Error {
     kNoError,
     kInvalidSize,
     kOutOfBounds,
@@ skipping 40 matching lines @@
   };
 }
 
 // Invalid shared memory Id, returned by RegisterSharedMemory in case of
 // failure.
 const int32_t kInvalidSharedMemoryId = -1;
 
 // Common Command Buffer shared memory transfer buffer ID.
 const int32_t kCommandBufferSharedMemoryId = 4;
 
-// The size to set for the program cache.
+// The size to set for the program cache for default and low-end device cases.
+#if !defined(OS_ANDROID)
 const size_t kDefaultMaxProgramCacheMemoryBytes = 6 * 1024 * 1024;
+#else
+const size_t kDefaultMaxProgramCacheMemoryBytes = 2 * 1024 * 1024;
+const size_t kLowEndMaxProgramCacheMemoryBytes = 512 * 1024;
+#endif
 
 // Namespace used to separate various command buffer types.
 enum CommandBufferNamespace : int8_t {
   INVALID = -1,
 
   GPU_IO,
   IN_PROCESS,
   MOJO,
   MOJO_LOCAL,
 
   NUM_COMMAND_BUFFER_NAMESPACES
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_COMMON_CONSTANTS_H_