gpu: Make sure sync queries complete on service side when calling glFinish.

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 9b028fd494fd6f946d611875dcd00a10c917bc84..7db6c38932f211f103b7dce2aeccb921c53082d5 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -627,7 +627,7 @@ class GLES2DecoderImpl : public GLES2Decoder,
     return vertex_array_manager_.get();
   }
   ImageManager* GetImageManager() override { return image_manager_.get(); }
-  bool ProcessPendingQueries() override;
+  bool ProcessPendingQueries(bool did_finish) override;
   bool HasMoreIdleWork() override;
   void PerformIdleWork() override;
 
@@ -3916,12 +3916,12 @@ bool GLES2DecoderImpl::CreateShaderHelper(GLenum type, GLuint client_id) {
 void GLES2DecoderImpl::DoFinish() {
   glFinish();
   ProcessPendingReadPixels();
-  ProcessPendingQueries();
+  ProcessPendingQueries(true);
 }
 
 void GLES2DecoderImpl::DoFlush() {
   glFlush();
-  ProcessPendingQueries();
+  ProcessPendingQueries(false);
 }
 
 void GLES2DecoderImpl::DoActiveTexture(GLenum texture_unit) {
@@ -9817,11 +9817,11 @@ void GLES2DecoderImpl::DeleteQueriesEXTHelper(
   }
 }
 
-bool GLES2DecoderImpl::ProcessPendingQueries() {
+bool GLES2DecoderImpl::ProcessPendingQueries(bool did_finish) {
   if (query_manager_.get() == NULL) {
     return false;
   }
-  if (!query_manager_->ProcessPendingQueries()) {
+  if (!query_manager_->ProcessPendingQueries(did_finish)) {
     current_decoder_error_ = error::kOutOfBounds;
   }
   return query_manager_->HavePendingQueries();