Rebind EGL context to flush driver caches.

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index 3f7084692ea84bf04702ae486210b8d23a2cbd26..b62a44f28c75ca4be07817ea19ddbb9e5161c4fe 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -1103,6 +1103,8 @@ class GLES2DecoderImpl : public GLES2Decoder,
 
   void DoLoseContextCHROMIUM(GLenum current, GLenum other);
 
+  void DoFlushDriverCachesCHROMIUM(void);
+
   void DoMatrixLoadfCHROMIUM(GLenum matrix_mode, const GLfloat* matrix);
   void DoMatrixLoadIdentityCHROMIUM(GLenum matrix_mode);
 
@@ -13275,6 +13277,15 @@ void GLES2DecoderImpl::DoLoseContextCHROMIUM(GLenum current, GLenum other) {
   reset_by_robustness_extension_ = true;
 }
 
+void GLES2DecoderImpl::DoFlushDriverCachesCHROMIUM(void) {
+  // On Adreno Android devices we need to use a workaround to force caches to
+  // clear.
+  if (feature_info_->workarounds().unbind_egl_context_to_flush_driver_caches) {
+    context_->ReleaseCurrent(nullptr);
+    context_->MakeCurrent(surface_.get());
+  }
+}
+
 void GLES2DecoderImpl::DoMatrixLoadfCHROMIUM(GLenum matrix_mode,
                                              const GLfloat* matrix) {
   DCHECK(matrix_mode == GL_PATH_PROJECTION_CHROMIUM ||